125462989 has 2 divisors, whose sum is σ = 125462990. Its totient is φ = 125462988.

The previous prime is 125462951. The next prime is 125463007. The reversal of 125462989 is 989264521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89965225 + 35497764 = 9485^2 + 5958^2 .

It is a cyclic number.

It is not a de Polignac number, because 125462989 - 2¹¹ = 125460941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125462489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62731494 + 62731495.

It is an arithmetic number, because the mean of its divisors is an integer number (62731495).

Almost surely, 2^125462989 is an apocalyptic number.

It is an amenable number.

125462989 is a deficient number, since it is larger than the sum of its proper divisors (1).

125462989 is an equidigital number, since it uses as much as digits as its factorization.

125462989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 125462989 is about 11201.0262476257. The cubic root of 125462989 is about 500.6165580665.

The spelling of 125462989 in words is "one hundred twenty-five million, four hundred sixty-two thousand, nine hundred eighty-nine".