126433947 has 16 divisors (see below), whose sum is σ = 178981920. Its totient is φ = 79114752.

The previous prime is 126433919. The next prime is 126433949. The reversal of 126433947 is 749334621.

It is not a de Polignac number, because 126433947 - 2⁷ = 126433819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126433949) 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, 16653 + ... + 23025.

It is an arithmetic number, because the mean of its divisors is an integer number (11186370).

Almost surely, 2^126433947 is an apocalyptic number.

126433947 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

126433947 is a deficient number, since it is larger than the sum of its proper divisors (52547973).

126433947 is a wasteful number, since it uses less digits than its factorization.

126433947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6782.

The product of its digits is 108864, while the sum is 39.

The square root of 126433947 is about 11244.2850817649. The cubic root of 126433947 is about 501.9046646258.

The spelling of 126433947 in words is "one hundred twenty-six million, four hundred thirty-three thousand, nine hundred forty-seven".