125047889 has 2 divisors, whose sum is σ = 125047890. Its totient is φ = 125047888.

The previous prime is 125047843. The next prime is 125047921. The reversal of 125047889 is 988740521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97851664 + 27196225 = 9892^2 + 5215^2 .

It is a cyclic number.

It is not a de Polignac number, because 125047889 - 2²⁰ = 123999313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (125043889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62523944 + 62523945.

It is an arithmetic number, because the mean of its divisors is an integer number (62523945).

Almost surely, 2^125047889 is an apocalyptic number.

It is an amenable number.

125047889 is a deficient number, since it is larger than the sum of its proper divisors (1).

125047889 is an equidigital number, since it uses as much as digits as its factorization.

125047889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 125047889 is about 11182.4813436017. The cubic root of 125047889 is about 500.0638438476.

The spelling of 125047889 in words is "one hundred twenty-five million, forty-seven thousand, eight hundred eighty-nine".