158781604 has 24 divisors (see below), whose sum is σ = 296126208. Its totient is φ = 74321280.

The previous prime is 158781593. The next prime is 158781617. The reversal of 158781604 is 406187851.

158781604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14037 + ... + 22684.

It is an arithmetic number, because the mean of its divisors is an integer number (12338592).

Almost surely, 2^158781604 is an apocalyptic number.

It is an amenable number.

158781604 is a deficient number, since it is larger than the sum of its proper divisors (137344604).

158781604 is a wasteful number, since it uses less digits than its factorization.

158781604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36795 (or 36793 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 158781604 is about 12600.8572724240. The cubic root of 158781604 is about 541.5019957768.

The spelling of 158781604 in words is "one hundred fifty-eight million, seven hundred eighty-one thousand, six hundred four".