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144264121 = 120112
BaseRepresentation
bin10001001100101…
…00101110111001
3101001110101011121
420212110232321
5243412422441
622152025241
73401140051
oct1046245671
9331411147
10144264121
1174484851
1240392221
1323b711b1
1415234561
15c9e9dd1
hex8994bb9

144264121 has 3 divisors (see below), whose sum is σ = 144276133. Its totient is φ = 144252110.

The previous prime is 144264089. The next prime is 144264157. The reversal of 144264121 is 121462441.

The square root of 144264121 is 12011.

It is a perfect power (a square), and thus also a powerful number.

144264121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 144264121 - 25 = 144264089 is a prime.

It is a super-3 number, since 3×1442641213 (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144264521) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6006 + ... + 18016.

Almost surely, 2144264121 is an apocalyptic number.

144264121 is the 12011-st square number.

144264121 is the 6006-th centered octagonal number.

It is an amenable number.

144264121 is a deficient number, since it is larger than the sum of its proper divisors (12012).

144264121 is an frugal number, since it uses more digits than its factorization.

144264121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24022 (or 12011 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The cubic root of 144264121 is about 524.4685427621.

Multiplying 144264121 by its sum of digits (25), we get a square (3606603025 = 600552).

The spelling of 144264121 in words is "one hundred forty-four million, two hundred sixty-four thousand, one hundred twenty-one".

Divisors: 1 12011 144264121