158989564 has 12 divisors (see below), whose sum is σ = 280933744. Its totient is φ = 78722784.

The previous prime is 158989543. The next prime is 158989577. The reversal of 158989564 is 465989851.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192537 + ... + 193360.

Almost surely, 2^158989564 is an apocalyptic number.

It is an amenable number.

158989564 is a deficient number, since it is larger than the sum of its proper divisors (121944180).

158989564 is a wasteful number, since it uses less digits than its factorization.

158989564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386004 (or 386002 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 55.

The square root of 158989564 is about 12609.1063918106. The cubic root of 158989564 is about 541.7382986082.

The spelling of 158989564 in words is "one hundred fifty-eight million, nine hundred eighty-nine thousand, five hundred sixty-four".