125469613 has 2 divisors, whose sum is σ = 125469614. Its totient is φ = 125469612.

The previous prime is 125469611. The next prime is 125469677. The reversal of 125469613 is 316964521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75724804 + 49744809 = 8702^2 + 7053^2 .

It is a cyclic number.

It is not a de Polignac number, because 125469613 - 2¹ = 125469611 is a prime.

Together with 125469611, 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 (125469611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62734806 + 62734807.

It is an arithmetic number, because the mean of its divisors is an integer number (62734807).

Almost surely, 2^125469613 is an apocalyptic number.

It is an amenable number.

125469613 is a deficient number, since it is larger than the sum of its proper divisors (1).

125469613 is an equidigital number, since it uses as much as digits as its factorization.

125469613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The square root of 125469613 is about 11201.3219309151. The cubic root of 125469613 is about 500.6253681699.

The spelling of 125469613 in words is "one hundred twenty-five million, four hundred sixty-nine thousand, six hundred thirteen".