125385919 has 2 divisors, whose sum is σ = 125385920. Its totient is φ = 125385918.

The previous prime is 125385907. The next prime is 125385977. The reversal of 125385919 is 919583521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125385919 - 2⁷ = 125385791 is a prime.

It is a super-2 number, since 2×125385919² = 31443257366949122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125385419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62692959 + 62692960.

It is an arithmetic number, because the mean of its divisors is an integer number (62692960).

Almost surely, 2^125385919 is an apocalyptic number.

125385919 is a deficient number, since it is larger than the sum of its proper divisors (1).

125385919 is an equidigital number, since it uses as much as digits as its factorization.

125385919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 43.

The square root of 125385919 is about 11197.5854093639. The cubic root of 125385919 is about 500.5140300318.

The spelling of 125385919 in words is "one hundred twenty-five million, three hundred eighty-five thousand, nine hundred nineteen".