76457139 has 16 divisors (see below), whose sum is σ = 113798784. Its totient is φ = 45259200.

The previous prime is 76457119. The next prime is 76457149. The reversal of 76457139 is 93175467.

It is not a de Polignac number, because 76457139 - 2⁵ = 76457107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76457139.

It is not an unprimeable number, because it can be changed into a prime (76457119) 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 15 ways as a sum of consecutive naturals, for example, 25522 + ... + 28359.

It is an arithmetic number, because the mean of its divisors is an integer number (7112424).

Almost surely, 2^76457139 is an apocalyptic number.

76457139 is a deficient number, since it is larger than the sum of its proper divisors (37341645).

76457139 is a wasteful number, since it uses less digits than its factorization.

76457139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53938.

The product of its digits is 158760, while the sum is 42.

The square root of 76457139 is about 8743.9772986897. The cubic root of 76457139 is about 424.4299420596.

The spelling of 76457139 in words is "seventy-six million, four hundred fifty-seven thousand, one hundred thirty-nine".