622155 has 32 divisors (see below), whose sum is σ = 1094400. Its totient is φ = 300672.

The previous prime is 622151. The next prime is 622157. The reversal of 622155 is 551226.

It is not a de Polignac number, because 622155 - 2² = 622151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (622151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10516 + ... + 10574.

It is an arithmetic number, because the mean of its divisors is an integer number (34200).

2⁶²²¹⁵⁵ is an apocalyptic number.

622155 is a deficient number, since it is larger than the sum of its proper divisors (472245).

622155 is a wasteful number, since it uses less digits than its factorization.

622155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123.

The product of its digits is 600, while the sum is 21.

The square root of 622155 is about 788.7680267354. The cubic root of 622155 is about 85.3688698154.

It can be divided in two parts, 622 and 155, that added together give a palindrome (777).

The spelling of 622155 in words is "six hundred twenty-two thousand, one hundred fifty-five".