165475 has 6 divisors (see below), whose sum is σ = 205220. Its totient is φ = 132360.

The previous prime is 165469. The next prime is 165479. The reversal of 165475 is 574561.

It is not a de Polignac number, because 165475 - 2⁵ = 165443 is a prime.

165475 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (165479) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3285 + ... + 3334.

2¹⁶⁵⁴⁷⁵ is an apocalyptic number.

165475 is a deficient number, since it is larger than the sum of its proper divisors (39745).

165475 is an equidigital number, since it uses as much as digits as its factorization.

165475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6629 (or 6624 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 165475 is about 406.7861846228. The cubic root of 165475 is about 54.9006470816.

The spelling of 165475 in words is "one hundred sixty-five thousand, four hundred seventy-five".