165047475 has 24 divisors (see below), whose sum is σ = 288932400. Its totient is φ = 82846720.

The previous prime is 165047419. The next prime is 165047513. The reversal of 165047475 is 574740561.

It is not a de Polignac number, because 165047475 - 2⁸ = 165047219 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63450 + ... + 65999.

It is an arithmetic number, because the mean of its divisors is an integer number (12038850).

Almost surely, 2^165047475 is an apocalyptic number.

165047475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165047475 is a deficient number, since it is larger than the sum of its proper divisors (123884925).

165047475 is a wasteful number, since it uses less digits than its factorization.

165047475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129479 (or 129474 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 39.

The square root of 165047475 is about 12847.0804076257. The cubic root of 165047475 is about 548.5332544799.

The spelling of 165047475 in words is "one hundred sixty-five million, forty-seven thousand, four hundred seventy-five".