158870725 has 12 divisors (see below), whose sum is σ = 212153956. Its totient is φ = 117319680.

The previous prime is 158870707. The next prime is 158870737. The reversal of 158870725 is 527078851.

It can be written as a sum of positive squares in 6 ways, for example, as 7851204 + 151019521 = 2802^2 + 12289^2 .

It is not a de Polignac number, because 158870725 - 2⁹ = 158870213 is a prime.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 244092 + ... + 244741.

Almost surely, 2^158870725 is an apocalyptic number.

It is an amenable number.

158870725 is a deficient number, since it is larger than the sum of its proper divisors (53283231).

158870725 is a wasteful number, since it uses less digits than its factorization.

158870725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488856 (or 488851 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 43.

The square root of 158870725 is about 12604.3930833658. The cubic root of 158870725 is about 541.6032883111.

The spelling of 158870725 in words is "one hundred fifty-eight million, eight hundred seventy thousand, seven hundred twenty-five".