126724233 has 4 divisors (see below), whose sum is σ = 168965648. Its totient is φ = 84482820.

The previous prime is 126724211. The next prime is 126724259. The reversal of 126724233 is 332427621.

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.

It is not a de Polignac number, because 126724233 - 2⁵ = 126724201 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 126724233.

It is not an unprimeable number, because it can be changed into a prime (126724133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21120703 + ... + 21120708.

It is an arithmetic number, because the mean of its divisors is an integer number (42241412).

Almost surely, 2^126724233 is an apocalyptic number.

It is an amenable number.

126724233 is a deficient number, since it is larger than the sum of its proper divisors (42241415).

126724233 is an equidigital number, since it uses as much as digits as its factorization.

126724233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42241414.

The product of its digits is 12096, while the sum is 30.

The square root of 126724233 is about 11257.1858383879. The cubic root of 126724233 is about 502.2884870075.

The spelling of 126724233 in words is "one hundred twenty-six million, seven hundred twenty-four thousand, two hundred thirty-three".