1252412731 has 2 divisors, whose sum is σ = 1252412732. Its totient is φ = 1252412730.

The previous prime is 1252412719. The next prime is 1252412761. The reversal of 1252412731 is 1372142521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1252412731 - 2⁵ = 1252412699 is a prime.

It is a super-2 number, since 2×1252412731² = 3137075297541756722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1252412731.

It is not a weakly prime, because it can be changed into another prime (1252412761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626206365 + 626206366.

It is an arithmetic number, because the mean of its divisors is an integer number (626206366).

Almost surely, 2^1252412731 is an apocalyptic number.

1252412731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252412731 is an equidigital number, since it uses as much as digits as its factorization.

1252412731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 28.

The square root of 1252412731 is about 35389.4437791836. The cubic root of 1252412731 is about 1077.9099757537.

The spelling of 1252412731 in words is "one billion, two hundred fifty-two million, four hundred twelve thousand, seven hundred thirty-one".