77158132 has 12 divisors (see below), whose sum is σ = 139382656. Its totient is φ = 37334520.

The previous prime is 77158099. The next prime is 77158139. The reversal of 77158132 is 23185177.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77158139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310998 + ... + 311245.

Almost surely, 2^77158132 is an apocalyptic number.

It is an amenable number.

77158132 is a deficient number, since it is larger than the sum of its proper divisors (62224524).

77158132 is a wasteful number, since it uses less digits than its factorization.

77158132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622278 (or 622276 counting only the distinct ones).

The product of its digits is 11760, while the sum is 34.

The square root of 77158132 is about 8783.9701729913. The cubic root of 77158132 is about 425.7231186595.

The spelling of 77158132 in words is "seventy-seven million, one hundred fifty-eight thousand, one hundred thirty-two".