126004561431 has 16 divisors (see below), whose sum is σ = 192280877568. Its totient is φ = 71899884000.

The previous prime is 126004561337. The next prime is 126004561451. The reversal of 126004561431 is 134165400621.

It is not a de Polignac number, because 126004561431 - 2¹³ = 126004553239 is a prime.

It is a super-2 number, since 2×126004561431² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126004561392 and 126004561401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126004561451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4265035 + ... + 4294476.

It is an arithmetic number, because the mean of its divisors is an integer number (12017554848).

Almost surely, 2^126004561431 is an apocalyptic number.

126004561431 is a deficient number, since it is larger than the sum of its proper divisors (66276316137).

126004561431 is an equidigital number, since it uses as much as digits as its factorization.

126004561431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8560222.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 126004561431 in words is "one hundred twenty-six billion, four million, five hundred sixty-one thousand, four hundred thirty-one".