125716869 has 24 divisors (see below), whose sum is σ = 186151680. Its totient is φ = 81720288.

The previous prime is 125716859. The next prime is 125716879. The reversal of 125716869 is 968617521.

125716869 is a `hidden beast` number, since 12 + 571 + 6 + 8 + 69 = 666.

It is an interprime number because it is at equal distance from previous prime (125716859) and next prime (125716879).

It is not a de Polignac number, because 125716869 - 2⁵ = 125716837 is a prime.

It is a super-2 number, since 2×125716869² = 31609462302326322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125716849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 185359 + ... + 186035.

It is an arithmetic number, because the mean of its divisors is an integer number (7756320).

Almost surely, 2^125716869 is an apocalyptic number.

It is an amenable number.

125716869 is a deficient number, since it is larger than the sum of its proper divisors (60434811).

125716869 is a wasteful number, since it uses less digits than its factorization.

125716869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1169 (or 1166 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 125716869 is about 11212.3534104130. The cubic root of 125716869 is about 500.9540039287.

It can be divided in two parts, 12 and 5716869, that added together give a square (5716881 = 2391²).

The spelling of 125716869 in words is "one hundred twenty-five million, seven hundred sixteen thousand, eight hundred sixty-nine".