31372753 has 2 divisors, whose sum is σ = 31372754. Its totient is φ = 31372752.

The previous prime is 31372723. The next prime is 31372763. The reversal of 31372753 is 35727313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26501904 + 4870849 = 5148^2 + 2207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31372753 is a prime.

It is not a weakly prime, because it can be changed into another prime (31372703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15686376 + 15686377.

It is an arithmetic number, because the mean of its divisors is an integer number (15686377).

Almost surely, 2^31372753 is an apocalyptic number.

It is an amenable number.

31372753 is a deficient number, since it is larger than the sum of its proper divisors (1).

31372753 is an equidigital number, since it uses as much as digits as its factorization.

31372753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230, while the sum is 31.

The square root of 31372753 is about 5601.1385449746. The cubic root of 31372753 is about 315.3921478715.

The spelling of 31372753 in words is "thirty-one million, three hundred seventy-two thousand, seven hundred fifty-three".