316520077 has 2 divisors, whose sum is σ = 316520078. Its totient is φ = 316520076.

The previous prime is 316520063. The next prime is 316520101. The reversal of 316520077 is 770025613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169286121 + 147233956 = 13011^2 + 12134^2 .

It is a cyclic number.

It is not a de Polignac number, because 316520077 - 2¹⁵ = 316487309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316530077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158260038 + 158260039.

It is an arithmetic number, because the mean of its divisors is an integer number (158260039).

Almost surely, 2^316520077 is an apocalyptic number.

It is an amenable number.

316520077 is a deficient number, since it is larger than the sum of its proper divisors (1).

316520077 is an equidigital number, since it uses as much as digits as its factorization.

316520077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 316520077 is about 17791.0111292192. The cubic root of 316520077 is about 681.5019260503.

The spelling of 316520077 in words is "three hundred sixteen million, five hundred twenty thousand, seventy-seven".