125394389 has 2 divisors, whose sum is σ = 125394390. Its totient is φ = 125394388.

The previous prime is 125394383. The next prime is 125394403. The reversal of 125394389 is 983493521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66994225 + 58400164 = 8185^2 + 7642^2 .

It is a cyclic number.

It is not a de Polignac number, because 125394389 - 2⁸ = 125394133 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 (125394383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62697194 + 62697195.

It is an arithmetic number, because the mean of its divisors is an integer number (62697195).

Almost surely, 2^125394389 is an apocalyptic number.

It is an amenable number.

125394389 is a deficient number, since it is larger than the sum of its proper divisors (1).

125394389 is an equidigital number, since it uses as much as digits as its factorization.

125394389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 125394389 is about 11197.9636095140. The cubic root of 125394389 is about 500.5252999267.

The spelling of 125394389 in words is "one hundred twenty-five million, three hundred ninety-four thousand, three hundred eighty-nine".