77052142 has 16 divisors (see below), whose sum is σ = 118120032. Its totient is φ = 37683360.

The previous prime is 77052133. The next prime is 77052179. The reversal of 77052142 is 24125077.

It is a self number, because there is not a number n which added to its sum of digits gives 77052142.

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, 41167 + ... + 42997.

It is an arithmetic number, because the mean of its divisors is an integer number (7382502).

Almost surely, 2^77052142 is an apocalyptic number.

77052142 is a deficient number, since it is larger than the sum of its proper divisors (41067890).

77052142 is a wasteful number, since it uses less digits than its factorization.

77052142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 77052142 is about 8777.9349507729. The cubic root of 77052142 is about 425.5280946264.

The spelling of 77052142 in words is "seventy-seven million, fifty-two thousand, one hundred forty-two".