57046139 has 4 divisors (see below), whose sum is σ = 57424080. Its totient is φ = 56668200.

The previous prime is 57046123. The next prime is 57046147. The reversal of 57046139 is 93164075.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57046139 - 2⁴ = 57046123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57046099 and 57046108.

It is not an unprimeable number, because it can be changed into a prime (57046159) 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, 188744 + ... + 189045.

It is an arithmetic number, because the mean of its divisors is an integer number (14356020).

Almost surely, 2^57046139 is an apocalyptic number.

57046139 is a deficient number, since it is larger than the sum of its proper divisors (377941).

57046139 is a wasteful number, since it uses less digits than its factorization.

57046139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377940.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 57046139 is about 7552.8894470924. The cubic root of 57046139 is about 384.9539248848.

The spelling of 57046139 in words is "fifty-seven million, forty-six thousand, one hundred thirty-nine".