161158625 has 16 divisors (see below), whose sum is σ = 205810176. Its totient is φ = 125924400.

The previous prime is 161158609. The next prime is 161158649. The reversal of 161158625 is 526851161.

It is a happy number.

161158625 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 161158625 - 2⁴ = 161158609 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9617 + ... + 20366.

It is an arithmetic number, because the mean of its divisors is an integer number (12863136).

Almost surely, 2^161158625 is an apocalyptic number.

It is an amenable number.

161158625 is a deficient number, since it is larger than the sum of its proper divisors (44651551).

161158625 is an equidigital number, since it uses as much as digits as its factorization.

161158625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30041 (or 30031 counting only the distinct ones).

The product of its digits is 14400, while the sum is 35.

The square root of 161158625 is about 12694.8267022437. The cubic root of 161158625 is about 544.1907862840.

The spelling of 161158625 in words is "one hundred sixty-one million, one hundred fifty-eight thousand, six hundred twenty-five".