125900519 has 2 divisors, whose sum is σ = 125900520. Its totient is φ = 125900518.

The previous prime is 125900491. The next prime is 125900527. The reversal of 125900519 is 915009521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 125900519 - 2¹² = 125896423 is a prime.

It is a super-2 number, since 2×125900519² = 31701881368938722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125900539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62950259 + 62950260.

It is an arithmetic number, because the mean of its divisors is an integer number (62950260).

Almost surely, 2^125900519 is an apocalyptic number.

125900519 is a deficient number, since it is larger than the sum of its proper divisors (1).

125900519 is an equidigital number, since it uses as much as digits as its factorization.

125900519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 32.

The square root of 125900519 is about 11220.5400493916. The cubic root of 125900519 is about 501.1978201623.

The spelling of 125900519 in words is "one hundred twenty-five million, nine hundred thousand, five hundred nineteen".