1252411513 has 2 divisors, whose sum is σ = 1252411514. Its totient is φ = 1252411512.

The previous prime is 1252411499. The next prime is 1252411519. The reversal of 1252411513 is 3151142521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1221642304 + 30769209 = 34952^2 + 5547^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252411513 - 2¹⁷ = 1252280441 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252411519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626205756 + 626205757.

It is an arithmetic number, because the mean of its divisors is an integer number (626205757).

Almost surely, 2^1252411513 is an apocalyptic number.

It is an amenable number.

1252411513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252411513 is an equidigital number, since it uses as much as digits as its factorization.

1252411513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 25.

The square root of 1252411513 is about 35389.4265706581. The cubic root of 1252411513 is about 1077.9096263229.

The spelling of 1252411513 in words is "one billion, two hundred fifty-two million, four hundred eleven thousand, five hundred thirteen".