163625087 has 4 divisors (see below), whose sum is σ = 163874040. Its totient is φ = 163376136.

The previous prime is 163625069. The next prime is 163625089. The reversal of 163625087 is 780526361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780526361 = 9161 ⋅85201.

It is a cyclic number.

It is not a de Polignac number, because 163625087 - 2⁸ = 163624831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163625087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163625089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123488 + ... + 124805.

It is an arithmetic number, because the mean of its divisors is an integer number (40968510).

Almost surely, 2^163625087 is an apocalyptic number.

163625087 is a deficient number, since it is larger than the sum of its proper divisors (248953).

163625087 is an equidigital number, since it uses as much as digits as its factorization.

163625087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248952.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 163625087 is about 12791.6022061351. The cubic root of 163625087 is about 546.9529430001.

The spelling of 163625087 in words is "one hundred sixty-three million, six hundred twenty-five thousand, eighty-seven".