57296139 has 8 divisors (see below), whose sum is σ = 77689920. Its totient is φ = 37549896.

The previous prime is 57296131. The next prime is 57296143. The reversal of 57296139 is 93169275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57296139 - 2³ = 57296131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57296139.

It is not an unprimeable number, because it can be changed into a prime (57296131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161677 + ... + 162030.

It is an arithmetic number, because the mean of its divisors is an integer number (9711240).

Almost surely, 2^57296139 is an apocalyptic number.

57296139 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

57296139 is a deficient number, since it is larger than the sum of its proper divisors (20393781).

57296139 is a wasteful number, since it uses less digits than its factorization.

57296139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323769.

The product of its digits is 102060, while the sum is 42.

The square root of 57296139 is about 7569.4213120951. The cubic root of 57296139 is about 385.5154483489.

The spelling of 57296139 in words is "fifty-seven million, two hundred ninety-six thousand, one hundred thirty-nine".