312224377 has 2 divisors, whose sum is σ = 312224378. Its totient is φ = 312224376.

The previous prime is 312224357. The next prime is 312224449. The reversal of 312224377 is 773422213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 265657401 + 46566976 = 16299^2 + 6824^2 .

It is a cyclic number.

It is not a de Polignac number, because 312224377 - 2¹¹ = 312222329 is a prime.

It is not a weakly prime, because it can be changed into another prime (312224347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156112188 + 156112189.

It is an arithmetic number, because the mean of its divisors is an integer number (156112189).

Almost surely, 2^312224377 is an apocalyptic number.

It is an amenable number.

312224377 is a deficient number, since it is larger than the sum of its proper divisors (1).

312224377 is an equidigital number, since it uses as much as digits as its factorization.

312224377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 31.

The square root of 312224377 is about 17669.8720142507. The cubic root of 312224377 is about 678.4048372178.

The spelling of 312224377 in words is "three hundred twelve million, two hundred twenty-four thousand, three hundred seventy-seven".