158515012 has 6 divisors (see below), whose sum is σ = 277401278. Its totient is φ = 79257504.

The previous prime is 158515009. The next prime is 158515033. The reversal of 158515012 is 210515851.

It can be written as a sum of positive squares in only one way, i.e., 119377476 + 39137536 = 10926^2 + 6256^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19814373 + ... + 19814380.

Almost surely, 2^158515012 is an apocalyptic number.

It is an amenable number.

158515012 is a deficient number, since it is larger than the sum of its proper divisors (118886266).

158515012 is a wasteful number, since it uses less digits than its factorization.

158515012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39628757 (or 39628755 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 28.

The square root of 158515012 is about 12590.2745005818. The cubic root of 158515012 is about 541.1987680210.

The spelling of 158515012 in words is "one hundred fifty-eight million, five hundred fifteen thousand, twelve".