31252043 has 2 divisors, whose sum is σ = 31252044. Its totient is φ = 31252042.

The previous prime is 31252007. The next prime is 31252097. The reversal of 31252043 is 34025213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31252043 - 2¹² = 31247947 is a prime.

It is not a weakly prime, because it can be changed into another prime (31212043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15626021 + 15626022.

It is an arithmetic number, because the mean of its divisors is an integer number (15626022).

Almost surely, 2^31252043 is an apocalyptic number.

31252043 is a deficient number, since it is larger than the sum of its proper divisors (1).

31252043 is an equidigital number, since it uses as much as digits as its factorization.

31252043 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 20.

The square root of 31252043 is about 5590.3526722381. The cubic root of 31252043 is about 314.9871263740.

Adding to 31252043 its reverse (34025213), we get a palindrome (65277256).

The spelling of 31252043 in words is "thirty-one million, two hundred fifty-two thousand, forty-three".