312113647 has 2 divisors, whose sum is σ = 312113648. Its totient is φ = 312113646.

The previous prime is 312113639. The next prime is 312113653. The reversal of 312113647 is 746311213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312113647 - 2³ = 312113639 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312113677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156056823 + 156056824.

It is an arithmetic number, because the mean of its divisors is an integer number (156056824).

Almost surely, 2^312113647 is an apocalyptic number.

312113647 is a deficient number, since it is larger than the sum of its proper divisors (1).

312113647 is an equidigital number, since it uses as much as digits as its factorization.

312113647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 28.

The square root of 312113647 is about 17666.7384369611. The cubic root of 312113647 is about 678.3246292485.

The spelling of 312113647 in words is "three hundred twelve million, one hundred thirteen thousand, six hundred forty-seven".