158607940 has 12 divisors (see below), whose sum is σ = 333076716. Its totient is φ = 63443168.

The previous prime is 158607907. The next prime is 158607941. The reversal of 158607940 is 49706851.

It can be written as a sum of positive squares in 2 ways, for example, as 93547584 + 65060356 = 9672^2 + 8066^2 .

It is a junction number, because it is equal to n+sod(n) for n = 158607893 and 158607902.

It is not an unprimeable number, because it can be changed into a prime (158607941) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3965179 + ... + 3965218.

It is an arithmetic number, because the mean of its divisors is an integer number (27756393).

Almost surely, 2^158607940 is an apocalyptic number.

158607940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158607940 is an abundant number, since it is smaller than the sum of its proper divisors (174468776).

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

158607940 is a wasteful number, since it uses less digits than its factorization.

158607940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7930406 (or 7930404 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 158607940 is about 12593.9644274549. The cubic root of 158607940 is about 541.3045049979.

The spelling of 158607940 in words is "one hundred fifty-eight million, six hundred seven thousand, nine hundred forty".