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149164157 = 3133114537
BaseRepresentation
bin10001110010000…
…01000001111101
3101101200022202102
420321001001331
5301141223112
622445034445
73460605632
oct1071010175
9341608672
10149164157
117722126a
1241b55a25
1324b9861c
1415b4c189
15d166bc2
hex8e4107d

149164157 has 8 divisors (see below), whose sum is σ = 154451712. Its totient is φ = 143906400.

The previous prime is 149164153. The next prime is 149164163. The reversal of 149164157 is 751461941.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149164157 - 22 = 149164153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149164157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149164153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2993 + ... + 17529.

It is an arithmetic number, because the mean of its divisors is an integer number (19306464).

Almost surely, 2149164157 is an apocalyptic number.

It is an amenable number.

149164157 is a deficient number, since it is larger than the sum of its proper divisors (5287555).

149164157 is a wasteful number, since it uses less digits than its factorization.

149164157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14899.

The product of its digits is 30240, while the sum is 38.

The square root of 149164157 is about 12213.2778974361. The cubic root of 149164157 is about 530.3405394243.

The spelling of 149164157 in words is "one hundred forty-nine million, one hundred sixty-four thousand, one hundred fifty-seven".

Divisors: 1 31 331 10261 14537 450647 4811747 149164157