165574479 has 12 divisors (see below), whose sum is σ = 256809624. Its totient is φ = 94613904.

The previous prime is 165574433. The next prime is 165574499. The reversal of 165574479 is 974475561.

It is not a de Polignac number, because 165574479 - 2¹⁵ = 165541711 is a prime.

It is a super-2 number, since 2×165574479² = 54829816192242882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165574499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 563032 + ... + 563325.

It is an arithmetic number, because the mean of its divisors is an integer number (21400802).

Almost surely, 2^165574479 is an apocalyptic number.

165574479 is a deficient number, since it is larger than the sum of its proper divisors (91235145).

165574479 is a wasteful number, since it uses less digits than its factorization.

165574479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126374 (or 1126367 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The square root of 165574479 is about 12867.5747132084. The cubic root of 165574479 is about 549.1164646197.

The spelling of 165574479 in words is "one hundred sixty-five million, five hundred seventy-four thousand, four hundred seventy-nine".