158639104 has 88 divisors (see below), whose sum is σ = 362122488. Its totient is φ = 68812800.

The previous prime is 158639099. The next prime is 158639111. The reversal of 158639104 is 401936851.

It can be written as a sum of positive squares in 4 ways, for example, as 43033600 + 115605504 = 6560^2 + 10752^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225954 + ... + 226654.

Almost surely, 2^158639104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158639104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181061244).

158639104 is an abundant number, since it is smaller than the sum of its proper divisors (203483384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158639104 is a wasteful number, since it uses less digits than its factorization.

158639104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 733 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 158639104 is about 12595.2016260162. The cubic root of 158639104 is about 541.3399553225.

The spelling of 158639104 in words is "one hundred fifty-eight million, six hundred thirty-nine thousand, one hundred four".