126252613 has 2 divisors, whose sum is σ = 126252614. Its totient is φ = 126252612.

The previous prime is 126252593. The next prime is 126252703. The reversal of 126252613 is 316252621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121154049 + 5098564 = 11007^2 + 2258^2 .

It is an emirp because it is prime and its reverse (316252621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126252613 - 2¹³ = 126244421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126252913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63126306 + 63126307.

It is an arithmetic number, because the mean of its divisors is an integer number (63126307).

Almost surely, 2^126252613 is an apocalyptic number.

It is an amenable number.

126252613 is a deficient number, since it is larger than the sum of its proper divisors (1).

126252613 is an equidigital number, since it uses as much as digits as its factorization.

126252613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 126252613 is about 11236.2188034943. The cubic root of 126252613 is about 501.6646027124.

The spelling of 126252613 in words is "one hundred twenty-six million, two hundred fifty-two thousand, six hundred thirteen".