158671564 has 12 divisors (see below), whose sum is σ = 277938304. Its totient is φ = 79260624.

The previous prime is 158671537. The next prime is 158671567. The reversal of 158671564 is 465176851.

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 self number, because there is not a number n which added to its sum of digits gives 158671564.

It is not an unprimeable number, because it can be changed into a prime (158671567) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13899 + ... + 22594.

Almost surely, 2^158671564 is an apocalyptic number.

It is an amenable number.

158671564 is a deficient number, since it is larger than the sum of its proper divisors (119266740).

158671564 is a wasteful number, since it uses less digits than its factorization.

158671564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37584 (or 37582 counting only the distinct ones).

The product of its digits is 201600, while the sum is 43.

The square root of 158671564 is about 12596.4901460685. The cubic root of 158671564 is about 541.3768749641.

The spelling of 158671564 in words is "one hundred fifty-eight million, six hundred seventy-one thousand, five hundred sixty-four".