126233421 has 4 divisors (see below), whose sum is σ = 168311232. Its totient is φ = 84155612.

The previous prime is 126233413. The next prime is 126233431. The reversal of 126233421 is 124332621.

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 a cyclic number.

It is not a de Polignac number, because 126233421 - 2³ = 126233413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126233391 and 126233400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126233411) 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, 21038901 + ... + 21038906.

It is an arithmetic number, because the mean of its divisors is an integer number (42077808).

Almost surely, 2^126233421 is an apocalyptic number.

It is an amenable number.

126233421 is a deficient number, since it is larger than the sum of its proper divisors (42077811).

126233421 is an equidigital number, since it uses as much as digits as its factorization.

126233421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42077810.

The product of its digits is 1728, while the sum is 24.

The square root of 126233421 is about 11235.3647470832. The cubic root of 126233421 is about 501.6391816281.

The spelling of 126233421 in words is "one hundred twenty-six million, two hundred thirty-three thousand, four hundred twenty-one".