125321759 has 2 divisors, whose sum is σ = 125321760. Its totient is φ = 125321758.

The previous prime is 125321741. The next prime is 125321767. The reversal of 125321759 is 957123521.

It is a strong prime.

It is an emirp because it is prime and its reverse (957123521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125321759 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 (125321159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62660879 + 62660880.

It is an arithmetic number, because the mean of its divisors is an integer number (62660880).

Almost surely, 2^125321759 is an apocalyptic number.

125321759 is a deficient number, since it is larger than the sum of its proper divisors (1).

125321759 is an equidigital number, since it uses as much as digits as its factorization.

125321759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18900, while the sum is 35.

The square root of 125321759 is about 11194.7201394229. The cubic root of 125321759 is about 500.4286444229.

The spelling of 125321759 in words is "one hundred twenty-five million, three hundred twenty-one thousand, seven hundred fifty-nine".