165308157 has 12 divisors (see below), whose sum is σ = 272889760. Its totient is φ = 94461768.

The previous prime is 165308083. The next prime is 165308159. The reversal of 165308157 is 751803561.

It is a de Polignac number, because none of the positive numbers 2^k-165308157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165308159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1311907 + ... + 1312032.

Almost surely, 2^165308157 is an apocalyptic number.

It is an amenable number.

165308157 is a deficient number, since it is larger than the sum of its proper divisors (107581603).

165308157 is a wasteful number, since it uses less digits than its factorization.

165308157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623952 (or 2623949 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 165308157 is about 12857.2219783280. The cubic root of 165308157 is about 548.8218937117.

The spelling of 165308157 in words is "one hundred sixty-five million, three hundred eight thousand, one hundred fifty-seven".