31752641 has 2 divisors, whose sum is σ = 31752642. Its totient is φ = 31752640.

The previous prime is 31752601. The next prime is 31752647. The reversal of 31752641 is 14625713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21893041 + 9859600 = 4679^2 + 3140^2 .

It is an emirp because it is prime and its reverse (14625713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31752641 - 2⁶ = 31752577 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31752647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15876320 + 15876321.

It is an arithmetic number, because the mean of its divisors is an integer number (15876321).

Almost surely, 2^31752641 is an apocalyptic number.

It is an amenable number.

31752641 is a deficient number, since it is larger than the sum of its proper divisors (1).

31752641 is an equidigital number, since it uses as much as digits as its factorization.

31752641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 31752641 is about 5634.9481807733. The cubic root of 31752641 is about 316.6600561255.

The spelling of 31752641 in words is "thirty-one million, seven hundred fifty-two thousand, six hundred forty-one".