165153331 has 8 divisors (see below), whose sum is σ = 191946240. Its totient is φ = 139160328.

The previous prime is 165153257. The next prime is 165153341. The reversal of 165153331 is 133351561.

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 165153331 - 2¹⁷ = 165022259 is a prime.

It is a super-2 number, since 2×165153331² = 54551245480791122, which contains 22 as substring.

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 165153331.

It is not an unprimeable number, because it can be changed into a prime (165153341) 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, 199531 + ... + 200356.

It is an arithmetic number, because the mean of its divisors is an integer number (23993280).

Almost surely, 2^165153331 is an apocalyptic number.

165153331 is a deficient number, since it is larger than the sum of its proper divisors (26792909).

165153331 is an equidigital number, since it uses as much as digits as its factorization.

165153331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399953.

The product of its digits is 4050, while the sum is 28.

The square root of 165153331 is about 12851.1995938122. The cubic root of 165153331 is about 548.6504997893.

The spelling of 165153331 in words is "one hundred sixty-five million, one hundred fifty-three thousand, three hundred thirty-one".