57345137 has 2 divisors, whose sum is σ = 57345138. Its totient is φ = 57345136.

The previous prime is 57345121. The next prime is 57345143. The reversal of 57345137 is 73154375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53597041 + 3748096 = 7321^2 + 1936^2 .

It is a cyclic number.

It is not a de Polignac number, because 57345137 - 2⁴ = 57345121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57345097 and 57345106.

It is not a weakly prime, because it can be changed into another prime (57345107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28672568 + 28672569.

It is an arithmetic number, because the mean of its divisors is an integer number (28672569).

Almost surely, 2^57345137 is an apocalyptic number.

It is an amenable number.

57345137 is a deficient number, since it is larger than the sum of its proper divisors (1).

57345137 is an equidigital number, since it uses as much as digits as its factorization.

57345137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44100, while the sum is 35.

The square root of 57345137 is about 7572.6571954632. The cubic root of 57345137 is about 385.6253109228.

The spelling of 57345137 in words is "fifty-seven million, three hundred forty-five thousand, one hundred thirty-seven".