126912685 has 16 divisors (see below), whose sum is σ = 160588800. Its totient is φ = 96019776.

The previous prime is 126912683. The next prime is 126912697. The reversal of 126912685 is 586219621.

It is a cyclic number.

It is not a de Polignac number, because 126912685 - 2¹ = 126912683 is a prime.

It is a super-2 number, since 2×126912685² = 32213659227818450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126912683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102651 + ... + 103879.

It is an arithmetic number, because the mean of its divisors is an integer number (10036800).

Almost surely, 2^126912685 is an apocalyptic number.

It is an amenable number.

126912685 is a deficient number, since it is larger than the sum of its proper divisors (33676115).

126912685 is a wasteful number, since it uses less digits than its factorization.

126912685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340.

The product of its digits is 51840, while the sum is 40.

The square root of 126912685 is about 11265.5530268159. The cubic root of 126912685 is about 502.5373486097.

It can be divided in two parts, 12691 and 2685, that added together give a square (15376 = 124²).

The spelling of 126912685 in words is "one hundred twenty-six million, nine hundred twelve thousand, six hundred eighty-five".