125623759 has 2 divisors, whose sum is σ = 125623760. Its totient is φ = 125623758.

The previous prime is 125623721. The next prime is 125623787. The reversal of 125623759 is 957326521.

It is a strong prime.

It is an emirp because it is prime and its reverse (957326521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125623759 - 2¹⁵ = 125590991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125623159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62811879 + 62811880.

It is an arithmetic number, because the mean of its divisors is an integer number (62811880).

Almost surely, 2^125623759 is an apocalyptic number.

125623759 is a deficient number, since it is larger than the sum of its proper divisors (1).

125623759 is an equidigital number, since it uses as much as digits as its factorization.

125623759 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 125623759 is about 11208.2005246159. The cubic root of 125623759 is about 500.8302991102.

The spelling of 125623759 in words is "one hundred twenty-five million, six hundred twenty-three thousand, seven hundred fifty-nine".