125765719 has 2 divisors, whose sum is σ = 125765720. Its totient is φ = 125765718.

The previous prime is 125765699. The next prime is 125765741. The reversal of 125765719 is 917567521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125765719 is a prime.

It is a super-2 number, since 2×125765719² = 31634032151173922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125765789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62882859 + 62882860.

It is an arithmetic number, because the mean of its divisors is an integer number (62882860).

Almost surely, 2^125765719 is an apocalyptic number.

125765719 is a deficient number, since it is larger than the sum of its proper divisors (1).

125765719 is an equidigital number, since it uses as much as digits as its factorization.

125765719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 132300, while the sum is 43.

The square root of 125765719 is about 11214.5315996701. The cubic root of 125765719 is about 501.0188810193.

The spelling of 125765719 in words is "one hundred twenty-five million, seven hundred sixty-five thousand, seven hundred nineteen".