314437021 has 2 divisors, whose sum is σ = 314437022. Its totient is φ = 314437020.

The previous prime is 314437009. The next prime is 314437031. The reversal of 314437021 is 120734413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 277056025 + 37380996 = 16645^2 + 6114^2 .

It is a cyclic number.

It is not a de Polignac number, because 314437021 - 2¹¹ = 314434973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314437031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157218510 + 157218511.

It is an arithmetic number, because the mean of its divisors is an integer number (157218511).

Almost surely, 2^314437021 is an apocalyptic number.

It is an amenable number.

314437021 is a deficient number, since it is larger than the sum of its proper divisors (1).

314437021 is an equidigital number, since it uses as much as digits as its factorization.

314437021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 314437021 is about 17732.3721199393. The cubic root of 314437021 is about 680.0036195021.

The spelling of 314437021 in words is "three hundred fourteen million, four hundred thirty-seven thousand, twenty-one".