125798389 has 2 divisors, whose sum is σ = 125798390. Its totient is φ = 125798388.

The previous prime is 125798371. The next prime is 125798401. The reversal of 125798389 is 983897521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124880625 + 917764 = 11175^2 + 958^2 .

It is a cyclic number.

It is not a de Polignac number, because 125798389 - 2⁵ = 125798357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125798359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62899194 + 62899195.

It is an arithmetic number, because the mean of its divisors is an integer number (62899195).

Almost surely, 2^125798389 is an apocalyptic number.

It is an amenable number.

125798389 is a deficient number, since it is larger than the sum of its proper divisors (1).

125798389 is an equidigital number, since it uses as much as digits as its factorization.

125798389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 52.

The square root of 125798389 is about 11215.9880973546. The cubic root of 125798389 is about 501.0622602747.

The spelling of 125798389 in words is "one hundred twenty-five million, seven hundred ninety-eight thousand, three hundred eighty-nine".