57139373 has 2 divisors, whose sum is σ = 57139374. Its totient is φ = 57139372.

The previous prime is 57139351. The next prime is 57139421. The reversal of 57139373 is 37393175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29398084 + 27741289 = 5422^2 + 5267^2 .

It is a cyclic number.

It is not a de Polignac number, because 57139373 - 2¹⁰ = 57138349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57139333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28569686 + 28569687.

It is an arithmetic number, because the mean of its divisors is an integer number (28569687).

Almost surely, 2^57139373 is an apocalyptic number.

It is an amenable number.

57139373 is a deficient number, since it is larger than the sum of its proper divisors (1).

57139373 is an equidigital number, since it uses as much as digits as its factorization.

57139373 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59535, while the sum is 38.

The square root of 57139373 is about 7559.0590022833. The cubic root of 57139373 is about 385.1635286649.

The spelling of 57139373 in words is "fifty-seven million, one hundred thirty-nine thousand, three hundred seventy-three".