165394359 has 16 divisors (see below), whose sum is σ = 263877600. Its totient is φ = 101780928.

The previous prime is 165394303. The next prime is 165394367. The reversal of 165394359 is 953493561.

It is not a de Polignac number, because 165394359 - 2¹³ = 165386167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165394379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235254 + ... + 235955.

It is an arithmetic number, because the mean of its divisors is an integer number (16492350).

Almost surely, 2^165394359 is an apocalyptic number.

165394359 is a deficient number, since it is larger than the sum of its proper divisors (98483241).

165394359 is a wasteful number, since it uses less digits than its factorization.

165394359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471231 (or 471225 counting only the distinct ones).

The product of its digits is 437400, while the sum is 45.

The square root of 165394359 is about 12860.5738207904. The cubic root of 165394359 is about 548.9172738081.

The spelling of 165394359 in words is "one hundred sixty-five million, three hundred ninety-four thousand, three hundred fifty-nine".