125290903 has 4 divisors (see below), whose sum is σ = 125485200. Its totient is φ = 125096608.

The previous prime is 125290831. The next prime is 125290909. The reversal of 125290903 is 309092521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125290903 - 2²¹ = 123193751 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125290909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96178 + ... + 97471.

It is an arithmetic number, because the mean of its divisors is an integer number (31371300).

Almost surely, 2^125290903 is an apocalyptic number.

125290903 is a deficient number, since it is larger than the sum of its proper divisors (194297).

125290903 is an equidigital number, since it uses as much as digits as its factorization.

125290903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194296.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 125290903 is about 11193.3419049004. The cubic root of 125290903 is about 500.3875701678.

The spelling of 125290903 in words is "one hundred twenty-five million, two hundred ninety thousand, nine hundred three".