125756903 has 2 divisors, whose sum is σ = 125756904. Its totient is φ = 125756902.

The previous prime is 125756899. The next prime is 125756921. The reversal of 125756903 is 309657521.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (309657521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125756903 - 2² = 125756899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125756503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62878451 + 62878452.

It is an arithmetic number, because the mean of its divisors is an integer number (62878452).

Almost surely, 2^125756903 is an apocalyptic number.

125756903 is a deficient number, since it is larger than the sum of its proper divisors (1).

125756903 is an equidigital number, since it uses as much as digits as its factorization.

125756903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 38.

The square root of 125756903 is about 11214.1385313362. The cubic root of 125756903 is about 501.0071738395.

The spelling of 125756903 in words is "one hundred twenty-five million, seven hundred fifty-six thousand, nine hundred three".