621124105 has 16 divisors (see below), whose sum is σ = 852894720. Its totient is φ = 425380032.

The previous prime is 621124099. The next prime is 621124151. The reversal of 621124105 is 501421126.

It is not a de Polignac number, because 621124105 - 2⁵ = 621124073 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18312 + ... + 39718.

It is an arithmetic number, because the mean of its divisors is an integer number (53305920).

Almost surely, 2^621124105 is an apocalyptic number.

It is an amenable number.

621124105 is a deficient number, since it is larger than the sum of its proper divisors (231770615).

621124105 is a wasteful number, since it uses less digits than its factorization.

621124105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22248.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 621124105 is about 24922.3615454074. The cubic root of 621124105 is about 853.2169240043.

The spelling of 621124105 in words is "six hundred twenty-one million, one hundred twenty-four thousand, one hundred five".