773131057 has 2 divisors, whose sum is σ = 773131058. Its totient is φ = 773131056.

The previous prime is 773131043. The next prime is 773131061. The reversal of 773131057 is 750131377.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424524816 + 348606241 = 20604^2 + 18671^2 .

It is a cyclic number.

It is not a de Polignac number, because 773131057 - 2⁷ = 773130929 is a prime.

It is not a weakly prime, because it can be changed into another prime (773131027) 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, 386565528 + 386565529.

It is an arithmetic number, because the mean of its divisors is an integer number (386565529).

Almost surely, 2^773131057 is an apocalyptic number.

It is an amenable number.

773131057 is a deficient number, since it is larger than the sum of its proper divisors (1).

773131057 is an equidigital number, since it uses as much as digits as its factorization.

773131057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15435, while the sum is 34.

The square root of 773131057 is about 27805.2343453530. The cubic root of 773131057 is about 917.8063113151.

The spelling of 773131057 in words is "seven hundred seventy-three million, one hundred thirty-one thousand, fifty-seven".