125001262513 has 2 divisors, whose sum is σ = 125001262514. Its totient is φ = 125001262512.

The previous prime is 125001262501. The next prime is 125001262517. The reversal of 125001262513 is 315262100521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101367734689 + 23633527824 = 318383^2 + 153732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125001262513 is a prime.

It is not a weakly prime, because it can be changed into another prime (125001262517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62500631256 + 62500631257.

It is an arithmetic number, because the mean of its divisors is an integer number (62500631257).

Almost surely, 2^125001262513 is an apocalyptic number.

It is an amenable number.

125001262513 is a deficient number, since it is larger than the sum of its proper divisors (1).

125001262513 is an equidigital number, since it uses as much as digits as its factorization.

125001262513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 125001262513 in words is "one hundred twenty-five billion, one million, two hundred sixty-two thousand, five hundred thirteen".