163161625 has 32 divisors (see below), whose sum is σ = 224415360. Its totient is φ = 117448000.

The previous prime is 163161617. The next prime is 163161629. The reversal of 163161625 is 526161361.

163161625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 163161625 - 2³ = 163161617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163161629) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146571 + ... + 147679.

It is an arithmetic number, because the mean of its divisors is an integer number (7012980).

Almost surely, 2^163161625 is an apocalyptic number.

It is an amenable number.

163161625 is a deficient number, since it is larger than the sum of its proper divisors (61253735).

163161625 is a wasteful number, since it uses less digits than its factorization.

163161625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1232 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 163161625 is about 12773.4734900105. The cubic root of 163161625 is about 546.4360466767.

The spelling of 163161625 in words is "one hundred sixty-three million, one hundred sixty-one thousand, six hundred twenty-five".