163625045 has 8 divisors (see below), whose sum is σ = 200055096. Its totient is φ = 128430016.

The previous prime is 163625041. The next prime is 163625053. The reversal of 163625045 is 540526361.

It can be written as a sum of positive squares in 4 ways, for example, as 72880369 + 90744676 = 8537^2 + 9526^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163625045 - 2² = 163625041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163625041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308462 + ... + 308991.

It is an arithmetic number, because the mean of its divisors is an integer number (25006887).

Almost surely, 2^163625045 is an apocalyptic number.

It is an amenable number.

163625045 is a deficient number, since it is larger than the sum of its proper divisors (36430051).

163625045 is an equidigital number, since it uses as much as digits as its factorization.

163625045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617511.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 163625045 is about 12791.6005644329. The cubic root of 163625045 is about 546.9528962020.

The spelling of 163625045 in words is "one hundred sixty-three million, six hundred twenty-five thousand, forty-five".