31941293 has 2 divisors, whose sum is σ = 31941294. Its totient is φ = 31941292.

The previous prime is 31941289. The next prime is 31941311. The reversal of 31941293 is 39214913.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18088009 + 13853284 = 4253^2 + 3722^2 .

It is a cyclic number.

It is not a de Polignac number, because 31941293 - 2² = 31941289 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31941233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15970646 + 15970647.

It is an arithmetic number, because the mean of its divisors is an integer number (15970647).

Almost surely, 2^31941293 is an apocalyptic number.

It is an amenable number.

31941293 is a deficient number, since it is larger than the sum of its proper divisors (1).

31941293 is an equidigital number, since it uses as much as digits as its factorization.

31941293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 32.

The square root of 31941293 is about 5651.6628526479. The cubic root of 31941293 is about 317.2859424743.

The spelling of 31941293 in words is "thirty-one million, nine hundred forty-one thousand, two hundred ninety-three".