126044621 has 4 divisors (see below), whose sum is σ = 127925952. Its totient is φ = 124163292.

The previous prime is 126044617. The next prime is 126044671. The reversal of 126044621 is 126440621.

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 126044621 - 2² = 126044617 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126044671) 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, 940565 + ... + 940698.

It is an arithmetic number, because the mean of its divisors is an integer number (31981488).

Almost surely, 2^126044621 is an apocalyptic number.

It is an amenable number.

126044621 is a deficient number, since it is larger than the sum of its proper divisors (1881331).

126044621 is an equidigital number, since it uses as much as digits as its factorization.

126044621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881330.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 126044621 is about 11226.9595616979. The cubic root of 126044621 is about 501.3889659742.

The spelling of 126044621 in words is "one hundred twenty-six million, forty-four thousand, six hundred twenty-one".