957871513 has 2 divisors, whose sum is σ = 957871514. Its totient is φ = 957871512.

The previous prime is 957871487. The next prime is 957871553. The reversal of 957871513 is 315178759.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 679749184 + 278122329 = 26072^2 + 16677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-957871513 is a prime.

It is not a weakly prime, because it can be changed into another prime (957871553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 478935756 + 478935757.

It is an arithmetic number, because the mean of its divisors is an integer number (478935757).

Almost surely, 2^957871513 is an apocalyptic number.

It is an amenable number.

957871513 is a deficient number, since it is larger than the sum of its proper divisors (1).

957871513 is an equidigital number, since it uses as much as digits as its factorization.

957871513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 46.

The square root of 957871513 is about 30949.4993982132. The cubic root of 957871513 is about 985.7552207513.

The spelling of 957871513 in words is "nine hundred fifty-seven million, eight hundred seventy-one thousand, five hundred thirteen".