125202613 has 2 divisors, whose sum is σ = 125202614. Its totient is φ = 125202612.

The previous prime is 125202611. The next prime is 125202629. The reversal of 125202613 is 316202521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115820644 + 9381969 = 10762^2 + 3063^2 .

It is a cyclic number.

It is not a de Polignac number, because 125202613 - 2¹ = 125202611 is a prime.

Together with 125202611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125202611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62601306 + 62601307.

It is an arithmetic number, because the mean of its divisors is an integer number (62601307).

Almost surely, 2^125202613 is an apocalyptic number.

It is an amenable number.

125202613 is a deficient number, since it is larger than the sum of its proper divisors (1).

125202613 is an equidigital number, since it uses as much as digits as its factorization.

125202613 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 22.

The square root of 125202613 is about 11189.3973474893. The cubic root of 125202613 is about 500.2700048352.

The spelling of 125202613 in words is "one hundred twenty-five million, two hundred two thousand, six hundred thirteen".