163125165 has 48 divisors (see below), whose sum is σ = 319619520. Its totient is φ = 70640640.

The previous prime is 163125139. The next prime is 163125167. The reversal of 163125165 is 561521361.

It is not a de Polignac number, because 163125165 - 2⁷ = 163125037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163125167) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8125 + ... + 19805.

It is an arithmetic number, because the mean of its divisors is an integer number (6658740).

Almost surely, 2^163125165 is an apocalyptic number.

163125165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163125165 is a deficient number, since it is larger than the sum of its proper divisors (156494355).

163125165 is a wasteful number, since it uses less digits than its factorization.

163125165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11722 (or 11715 counting only the distinct ones).

The product of its digits is 5400, while the sum is 30.

The square root of 163125165 is about 12772.0462338656. The cubic root of 163125165 is about 546.3953415528.

It can be divided in two parts, 1631 and 25165, that added together give a triangular number (26796 = T₂₃₁).

The spelling of 163125165 in words is "one hundred sixty-three million, one hundred twenty-five thousand, one hundred sixty-five".