165294157 has 8 divisors (see below), whose sum is σ = 189072576. Its totient is φ = 141556992.

The previous prime is 165294127. The next prime is 165294163. The reversal of 165294157 is 751492561.

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 165294157 - 2¹⁵ = 165261389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165294127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1183 + ... + 18220.

It is an arithmetic number, because the mean of its divisors is an integer number (23634072).

Almost surely, 2^165294157 is an apocalyptic number.

It is an amenable number.

165294157 is a deficient number, since it is larger than the sum of its proper divisors (23778419).

165294157 is a wasteful number, since it uses less digits than its factorization.

165294157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20627.

The product of its digits is 75600, while the sum is 40.

The square root of 165294157 is about 12856.6775257062. The cubic root of 165294157 is about 548.8063999745.

The spelling of 165294157 in words is "one hundred sixty-five million, two hundred ninety-four thousand, one hundred fifty-seven".