31263941 has 2 divisors, whose sum is σ = 31263942. Its totient is φ = 31263940.

The previous prime is 31263917. The next prime is 31263983. The reversal of 31263941 is 14936213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29430625 + 1833316 = 5425^2 + 1354^2 .

It is a cyclic number.

It is not a de Polignac number, because 31263941 - 2¹⁸ = 31001797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31263041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15631970 + 15631971.

It is an arithmetic number, because the mean of its divisors is an integer number (15631971).

Almost surely, 2^31263941 is an apocalyptic number.

It is an amenable number.

31263941 is a deficient number, since it is larger than the sum of its proper divisors (1).

31263941 is an equidigital number, since it uses as much as digits as its factorization.

31263941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 31263941 is about 5591.4167256609. The cubic root of 31263941 is about 315.0270943353.

The spelling of 31263941 in words is "thirty-one million, two hundred sixty-three thousand, nine hundred forty-one".