312274733 has 2 divisors, whose sum is σ = 312274734. Its totient is φ = 312274732.

The previous prime is 312274693. The next prime is 312274763. The reversal of 312274733 is 337472213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238949764 + 73324969 = 15458^2 + 8563^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312274733 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312274733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312274763) 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, 156137366 + 156137367.

It is an arithmetic number, because the mean of its divisors is an integer number (156137367).

Almost surely, 2^312274733 is an apocalyptic number.

It is an amenable number.

312274733 is a deficient number, since it is larger than the sum of its proper divisors (1).

312274733 is an equidigital number, since it uses as much as digits as its factorization.

312274733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 32.

The square root of 312274733 is about 17671.2968680853. The cubic root of 312274733 is about 678.4413066291.

The spelling of 312274733 in words is "three hundred twelve million, two hundred seventy-four thousand, seven hundred thirty-three".