158530986 has 32 divisors (see below), whose sum is σ = 355596480. Its totient is φ = 52347888.

The previous prime is 158530979. The next prime is 158530987. The reversal of 158530986 is 689035851.

It is not an unprimeable number, because it can be changed into a prime (158530987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7941 + ... + 19496.

It is an arithmetic number, because the mean of its divisors is an integer number (11112390).

Almost surely, 2^158530986 is an apocalyptic number.

158530986 is an abundant number, since it is smaller than the sum of its proper divisors (197065494).

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

158530986 is a wasteful number, since it uses less digits than its factorization.

158530986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27555 (or 27549 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 158530986 is about 12590.9088631441. The cubic root of 158530986 is about 541.2169467803.

The spelling of 158530986 in words is "one hundred fifty-eight million, five hundred thirty thousand, nine hundred eighty-six".