126403047 has 12 divisors (see below), whose sum is σ = 182720200. Its totient is φ = 84205008.

The previous prime is 126403033. The next prime is 126403087. The reversal of 126403047 is 740304621.

126403047 is a `hidden beast` number, since 12 + 640 + 3 + 0 + 4 + 7 = 666.

It is not a de Polignac number, because 126403047 - 2⁴ = 126403031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126403047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126403087) 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, 9408 + ... + 18474.

Almost surely, 2^126403047 is an apocalyptic number.

126403047 is a deficient number, since it is larger than the sum of its proper divisors (56317153).

126403047 is a wasteful number, since it uses less digits than its factorization.

126403047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10622 (or 10619 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 126403047 is about 11242.9109664713. The cubic root of 126403047 is about 501.8637733986.

Adding to 126403047 its reverse (740304621), we get a palindrome (866707668).

The spelling of 126403047 in words is "one hundred twenty-six million, four hundred three thousand, forty-seven".