125304889 has 2 divisors, whose sum is σ = 125304890. Its totient is φ = 125304888.

The previous prime is 125304877. The next prime is 125304899. The reversal of 125304889 is 988403521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94867600 + 30437289 = 9740^2 + 5517^2 .

It is a cyclic number.

It is not a de Polignac number, because 125304889 - 2⁵ = 125304857 is a prime.

It is not a weakly prime, because it can be changed into another prime (125304899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62652444 + 62652445.

It is an arithmetic number, because the mean of its divisors is an integer number (62652445).

Almost surely, 2^125304889 is an apocalyptic number.

It is an amenable number.

125304889 is a deficient number, since it is larger than the sum of its proper divisors (1).

125304889 is an equidigital number, since it uses as much as digits as its factorization.

125304889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 125304889 is about 11193.9666338613. The cubic root of 125304889 is about 500.4061885990.

The spelling of 125304889 in words is "one hundred twenty-five million, three hundred four thousand, eight hundred eighty-nine".