31023469 has 2 divisors, whose sum is σ = 31023470. Its totient is φ = 31023468.

The previous prime is 31023451. The next prime is 31023493. The reversal of 31023469 is 96432013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30669444 + 354025 = 5538^2 + 595^2 .

It is a cyclic number.

It is not a de Polignac number, because 31023469 - 2⁵ = 31023437 is a prime.

It is a super-2 number, since 2×31023469² = 1924911257587922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31023269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511734 + 15511735.

It is an arithmetic number, because the mean of its divisors is an integer number (15511735).

Almost surely, 2^31023469 is an apocalyptic number.

It is an amenable number.

31023469 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023469 is an equidigital number, since it uses as much as digits as its factorization.

31023469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 31023469 is about 5569.8715425044. The cubic root of 31023469 is about 314.2173195031.

The spelling of 31023469 in words is "thirty-one million, twenty-three thousand, four hundred sixty-nine".