312533047 has 2 divisors, whose sum is σ = 312533048. Its totient is φ = 312533046.

The previous prime is 312533009. The next prime is 312533051. The reversal of 312533047 is 740335213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312533047 - 2¹⁹ = 312008759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312533647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156266523 + 156266524.

It is an arithmetic number, because the mean of its divisors is an integer number (156266524).

Almost surely, 2^312533047 is an apocalyptic number.

312533047 is a deficient number, since it is larger than the sum of its proper divisors (1).

312533047 is an equidigital number, since it uses as much as digits as its factorization.

312533047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 312533047 is about 17678.6042152654. The cubic root of 312533047 is about 678.6283242013.

The spelling of 312533047 in words is "three hundred twelve million, five hundred thirty-three thousand, forty-seven".