311677057 has 2 divisors, whose sum is σ = 311677058. Its totient is φ = 311677056.

The previous prime is 311677043. The next prime is 311677061. The reversal of 311677057 is 750776113.

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., 156525121 + 155151936 = 12511^2 + 12456^2 .

It is a cyclic number.

It is not a de Polignac number, because 311677057 - 2¹¹ = 311675009 is a prime.

It is not a weakly prime, because it can be changed into another prime (311677087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155838528 + 155838529.

It is an arithmetic number, because the mean of its divisors is an integer number (155838529).

Almost surely, 2^311677057 is an apocalyptic number.

It is an amenable number.

311677057 is a deficient number, since it is larger than the sum of its proper divisors (1).

311677057 is an equidigital number, since it uses as much as digits as its factorization.

311677057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30870, while the sum is 37.

The square root of 311677057 is about 17654.3778423370. The cubic root of 311677057 is about 678.0081975613.

The spelling of 311677057 in words is "three hundred eleven million, six hundred seventy-seven thousand, fifty-seven".