622621131 has 8 divisors (see below), whose sum is σ = 905630784. Its totient is φ = 377346120.

The previous prime is 622621117. The next prime is 622621147. The reversal of 622621131 is 131126226.

622621131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 622621131 - 2⁷ = 622621003 is a prime.

It is a super-2 number, since 2×622621131² = 775314145535438322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (622621031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9433621 + ... + 9433686.

It is an arithmetic number, because the mean of its divisors is an integer number (113203848).

Almost surely, 2^622621131 is an apocalyptic number.

622621131 is a deficient number, since it is larger than the sum of its proper divisors (283009653).

622621131 is a wasteful number, since it uses less digits than its factorization.

622621131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18867321.

The product of its digits is 864, while the sum is 24.

The square root of 622621131 is about 24952.3772614955. The cubic root of 622621131 is about 853.9018451616.

Adding to 622621131 its reverse (131126226), we get a palindrome (753747357).

The spelling of 622621131 in words is "six hundred twenty-two million, six hundred twenty-one thousand, one hundred thirty-one".