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120150161 = 294143109
BaseRepresentation
bin1110010100101…
…01100010010001
322101002021000222
413022111202101
5221224301121
615531122425
72656155005
oct712254221
9271067028
10120150161
116190465a
12342a3415
131bb7a391
1411d58705
15a8350ab
hex7295891

120150161 has 4 divisors (see below), whose sum is σ = 124293300. Its totient is φ = 116007024.

The previous prime is 120150143. The next prime is 120150179. The reversal of 120150161 is 161051021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 161051021 = 467344863.

It is an interprime number because it is at equal distance from previous prime (120150143) and next prime (120150179).

It can be written as a sum of positive squares in 2 ways, for example, as 61152400 + 58997761 = 7820^2 + 7681^2 .

It is a cyclic number.

It is not a de Polignac number, because 120150161 - 26 = 120150097 is a prime.

It is a super-2 number, since 2×1201501612 = 28872122376651842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120150061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2071526 + ... + 2071583.

It is an arithmetic number, because the mean of its divisors is an integer number (31073325).

Almost surely, 2120150161 is an apocalyptic number.

It is an amenable number.

120150161 is a deficient number, since it is larger than the sum of its proper divisors (4143139).

120150161 is an equidigital number, since it uses as much as digits as its factorization.

120150161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143138.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 120150161 is about 10961.3028878870. The cubic root of 120150161 is about 493.4480673712.

The spelling of 120150161 in words is "one hundred twenty million, one hundred fifty thousand, one hundred sixty-one".

Divisors: 1 29 4143109 120150161