31265401 has 2 divisors, whose sum is σ = 31265402. Its totient is φ = 31265400.

The previous prime is 31265383. The next prime is 31265417. The reversal of 31265401 is 10456213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29160000 + 2105401 = 5400^2 + 1451^2 .

It is a cyclic number.

It is not a de Polignac number, because 31265401 - 2⁵ = 31265369 is a prime.

It is not a weakly prime, because it can be changed into another prime (31265461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15632700 + 15632701.

It is an arithmetic number, because the mean of its divisors is an integer number (15632701).

Almost surely, 2^31265401 is an apocalyptic number.

It is an amenable number.

31265401 is a deficient number, since it is larger than the sum of its proper divisors (1).

31265401 is an equidigital number, since it uses as much as digits as its factorization.

31265401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 31265401 is about 5591.5472813882. The cubic root of 31265401 is about 315.0319980932.

The spelling of 31265401 in words is "thirty-one million, two hundred sixty-five thousand, four hundred one".