126100431 has 12 divisors (see below), whose sum is σ = 182301808. Its totient is φ = 83994624.

The previous prime is 126100427. The next prime is 126100493. The reversal of 126100431 is 134001621.

It is a happy number.

126100431 is a `hidden beast` number, since 12 + 610 + 0 + 43 + 1 = 666.

It is not a de Polignac number, because 126100431 - 2² = 126100427 is a prime.

It is a super-2 number, since 2×126100431² = 31802637396771522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126100411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6351 + ... + 17103.

Almost surely, 2^126100431 is an apocalyptic number.

126100431 is a deficient number, since it is larger than the sum of its proper divisors (56201377).

126100431 is a wasteful number, since it uses less digits than its factorization.

126100431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12062 (or 12059 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 126100431 is about 11229.4448215395. Note that the first 3 decimals coincide. The cubic root of 126100431 is about 501.4629566741.

The spelling of 126100431 in words is "one hundred twenty-six million, one hundred thousand, four hundred thirty-one".