126556793 has 4 divisors (see below), whose sum is σ = 138061968. Its totient is φ = 115051620.

The previous prime is 126556763. The next prime is 126556819. The reversal of 126556793 is 397655621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 397655621 = 11 ⋅36150511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126556793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126556733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5752571 + ... + 5752592.

It is an arithmetic number, because the mean of its divisors is an integer number (34515492).

Almost surely, 2^126556793 is an apocalyptic number.

It is an amenable number.

126556793 is a deficient number, since it is larger than the sum of its proper divisors (11505175).

126556793 is a wasteful number, since it uses less digits than its factorization.

126556793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11505174.

The product of its digits is 340200, while the sum is 44.

The square root of 126556793 is about 11249.7463526961. The cubic root of 126556793 is about 502.0671658727.

The spelling of 126556793 in words is "one hundred twenty-six million, five hundred fifty-six thousand, seven hundred ninety-three".