158617625 has 16 divisors (see below), whose sum is σ = 198367104. Its totient is φ = 126630000.

The previous prime is 158617619. The next prime is 158617639. The reversal of 158617625 is 526716851.

It is not a de Polignac number, because 158617625 - 2¹⁴ = 158601241 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77870 + ... + 79880.

It is an arithmetic number, because the mean of its divisors is an integer number (12397944).

Almost surely, 2^158617625 is an apocalyptic number.

It is an amenable number.

158617625 is a deficient number, since it is larger than the sum of its proper divisors (39749479).

158617625 is an equidigital number, since it uses as much as digits as its factorization.

158617625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2657 (or 2647 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 158617625 is about 12594.3489311675. The cubic root of 158617625 is about 541.3155225788.

The spelling of 158617625 in words is "one hundred fifty-eight million, six hundred seventeen thousand, six hundred twenty-five".