57140357 has 2 divisors, whose sum is σ = 57140358. Its totient is φ = 57140356.

The previous prime is 57140351. The next prime is 57140387. The reversal of 57140357 is 75304175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33189121 + 23951236 = 5761^2 + 4894^2 .

It is a cyclic number.

It is not a de Polignac number, because 57140357 - 2¹⁰ = 57139333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57140351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28570178 + 28570179.

It is an arithmetic number, because the mean of its divisors is an integer number (28570179).

Almost surely, 2^57140357 is an apocalyptic number.

It is an amenable number.

57140357 is a deficient number, since it is larger than the sum of its proper divisors (1).

57140357 is an equidigital number, since it uses as much as digits as its factorization.

57140357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 57140357 is about 7559.1240894696. The cubic root of 57140357 is about 385.1657396256.

The spelling of 57140357 in words is "fifty-seven million, one hundred forty thousand, three hundred fifty-seven".