612916313 has 2 divisors, whose sum is σ = 612916314. Its totient is φ = 612916312.

The previous prime is 612916301. The next prime is 612916319. The reversal of 612916313 is 313619216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423248329 + 189667984 = 20573^2 + 13772^2 .

It is a cyclic number.

It is not a de Polignac number, because 612916313 - 2¹⁸ = 612654169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612916313.

It is not a weakly prime, because it can be changed into another prime (612916319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306458156 + 306458157.

It is an arithmetic number, because the mean of its divisors is an integer number (306458157).

Almost surely, 2^612916313 is an apocalyptic number.

It is an amenable number.

612916313 is a deficient number, since it is larger than the sum of its proper divisors (1).

612916313 is an equidigital number, since it uses as much as digits as its factorization.

612916313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 612916313 is about 24757.1467055475. The cubic root of 612916313 is about 849.4419926989.

The spelling of 612916313 in words is "six hundred twelve million, nine hundred sixteen thousand, three hundred thirteen".