623122 has 4 divisors (see below), whose sum is σ = 934686. Its totient is φ = 311560.

The previous prime is 623107. The next prime is 623171. The reversal of 623122 is 221326.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 447561 + 175561 = 669^2 + 419^2 .

It is a junction number, because it is equal to n+sod(n) for n = 623096 and 623105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155779 + ... + 155782.

2⁶²³¹²² is an apocalyptic number.

623122 is a deficient number, since it is larger than the sum of its proper divisors (311564).

623122 is a wasteful number, since it uses less digits than its factorization.

623122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311563.

The product of its digits is 144, while the sum is 16.

The square root of 623122 is about 789.3807699710. The cubic root of 623122 is about 85.4130758223.

Adding to 623122 its reverse (221326), we get a palindrome (844448).

The spelling of 623122 in words is "six hundred twenty-three thousand, one hundred twenty-two".