77143132 has 24 divisors (see below), whose sum is σ = 152354160. Its totient is φ = 33855360.

The previous prime is 77143123. The next prime is 77143147. The reversal of 77143132 is 23134177.

It is a self number, because there is not a number n which added to its sum of digits gives 77143132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28953 + ... + 31504.

It is an arithmetic number, because the mean of its divisors is an integer number (6348090).

Almost surely, 2^77143132 is an apocalyptic number.

It is an amenable number.

77143132 is a deficient number, since it is larger than the sum of its proper divisors (75211028).

77143132 is a wasteful number, since it uses less digits than its factorization.

77143132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60501 (or 60499 counting only the distinct ones).

The product of its digits is 3528, while the sum is 28.

The square root of 77143132 is about 8783.1163034540. The cubic root of 77143132 is about 425.6955291690.

The spelling of 77143132 in words is "seventy-seven million, one hundred forty-three thousand, one hundred thirty-two".