31056497 has 2 divisors, whose sum is σ = 31056498. Its totient is φ = 31056496.

The previous prime is 31056491. The next prime is 31056499. The reversal of 31056497 is 79465013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17631601 + 13424896 = 4199^2 + 3664^2 .

It is a cyclic number.

It is not a de Polignac number, because 31056497 - 2¹⁶ = 30990961 is a prime.

It is a super-2 number, since 2×31056497² = 1929012011822018, which contains 22 as substring.

Together with 31056499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31056491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15528248 + 15528249.

It is an arithmetic number, because the mean of its divisors is an integer number (15528249).

Almost surely, 2^31056497 is an apocalyptic number.

It is an amenable number.

31056497 is a deficient number, since it is larger than the sum of its proper divisors (1).

31056497 is an equidigital number, since it uses as much as digits as its factorization.

31056497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 31056497 is about 5572.8356336788. The cubic root of 31056497 is about 314.3287866095.

The spelling of 31056497 in words is "thirty-one million, fifty-six thousand, four hundred ninety-seven".