655122 has 32 divisors (see below), whose sum is σ = 1455552. Its totient is φ = 195264.

The previous prime is 655121. The next prime is 655157. The reversal of 655122 is 221556.

It is not an unprimeable number, because it can be changed into a prime (655121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2773 + ... + 2999.

It is an arithmetic number, because the mean of its divisors is an integer number (45486).

2⁶⁵⁵¹²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727776).

655122 is an abundant number, since it is smaller than the sum of its proper divisors (800430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

655122 is a wasteful number, since it uses less digits than its factorization.

655122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282.

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

The square root of 655122 is about 809.3960711543. The cubic root of 655122 is about 86.8508476241.

Adding to 655122 its reverse (221556), we get a palindrome (876678).

It can be divided in two parts, 655 and 122, that added together give a palindrome (777).

The spelling of 655122 in words is "six hundred fifty-five thousand, one hundred twenty-two".