165932231 has 8 divisors (see below), whose sum is σ = 170803200. Its totient is φ = 161117208.

The previous prime is 165932213. The next prime is 165932237. The reversal of 165932231 is 132239561.

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 165932231 - 2⁶ = 165932167 is a prime.

It is a super-2 number, since 2×165932231² = 55067010569274722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165932237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7931 + ... + 19868.

It is an arithmetic number, because the mean of its divisors is an integer number (21350400).

Almost surely, 2^165932231 is an apocalyptic number.

165932231 is a deficient number, since it is larger than the sum of its proper divisors (4870969).

165932231 is a wasteful number, since it uses less digits than its factorization.

165932231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27973.

The product of its digits is 9720, while the sum is 32.

The square root of 165932231 is about 12881.4685110045. The cubic root of 165932231 is about 549.5116668233.

The spelling of 165932231 in words is "one hundred sixty-five million, nine hundred thirty-two thousand, two hundred thirty-one".