57009139 has 8 divisors (see below), whose sum is σ = 65465280. Its totient is φ = 49098600.

The previous prime is 57009133. The next prime is 57009149. The reversal of 57009139 is 93190075.

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

It is a cyclic number.

It is not a de Polignac number, because 57009139 - 2⁷ = 57009011 is a prime.

It is a Duffinian number.

57009139 is a modest number, since divided by 9139 gives 57 as remainder.

It is not an unprimeable number, because it can be changed into a prime (57009133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136177 + ... + 136594.

It is an arithmetic number, because the mean of its divisors is an integer number (8183160).

Almost surely, 2^57009139 is an apocalyptic number.

57009139 is a deficient number, since it is larger than the sum of its proper divisors (8456141).

57009139 is a wasteful number, since it uses less digits than its factorization.

57009139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272801.

The product of its (nonzero) digits is 8505, while the sum is 34.

The square root of 57009139 is about 7550.4396560730. The cubic root of 57009139 is about 384.8706801290.

The spelling of 57009139 in words is "fifty-seven million, nine thousand, one hundred thirty-nine".