3191957513 has 2 divisors, whose sum is σ = 3191957514. Its totient is φ = 3191957512.

The previous prime is 3191957371. The next prime is 3191957521. The reversal of 3191957513 is 3157591913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3185134969 + 6822544 = 56437^2 + 2612^2 .

It is a cyclic number.

It is not a de Polignac number, because 3191957513 - 2⁸ = 3191957257 is a prime.

It is not a weakly prime, because it can be changed into another prime (3191956513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1595978756 + 1595978757.

It is an arithmetic number, because the mean of its divisors is an integer number (1595978757).

Almost surely, 2^3191957513 is an apocalyptic number.

It is an amenable number.

3191957513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3191957513 is an equidigital number, since it uses as much as digits as its factorization.

3191957513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127575, while the sum is 44.

The square root of 3191957513 is about 56497.4115601768. The cubic root of 3191957513 is about 1472.3770314592.

The spelling of 3191957513 in words is "three billion, one hundred ninety-one million, nine hundred fifty-seven thousand, five hundred thirteen".