297222631 has 2 divisors, whose sum is σ = 297222632. Its totient is φ = 297222630.

The previous prime is 297222623. The next prime is 297222659. The reversal of 297222631 is 136222792.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 297222631 - 2³ = 297222623 is a prime.

It is a super-2 number, since 2×297222631² = 176682584757124322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (297222691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148611315 + 148611316.

It is an arithmetic number, because the mean of its divisors is an integer number (148611316).

Almost surely, 2^297222631 is an apocalyptic number.

297222631 is a deficient number, since it is larger than the sum of its proper divisors (1).

297222631 is an equidigital number, since it uses as much as digits as its factorization.

297222631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 297222631 is about 17240.1459100554. The cubic root of 297222631 is about 667.3606949309.

The spelling of 297222631 in words is "two hundred ninety-seven million, two hundred twenty-two thousand, six hundred thirty-one".