2155322 has 16 divisors (see below), whose sum is σ = 3665760. Its totient is φ = 942192.

The previous prime is 2155319. The next prime is 2155327. The reversal of 2155322 is 2235512.

It is a junction number, because it is equal to n+sod(n) for n = 2155294 and 2155303.

It is not an unprimeable number, because it can be changed into a prime (2155327) 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, 1688 + ... + 2675.

It is an arithmetic number, because the mean of its divisors is an integer number (229110).

2^2155322 is an apocalyptic number.

2155322 is a deficient number, since it is larger than the sum of its proper divisors (1510438).

2155322 is a wasteful number, since it uses less digits than its factorization.

2155322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4397.

The product of its digits is 600, while the sum is 20.

The square root of 2155322 is about 1468.1014951290. The cubic root of 2155322 is about 129.1726950129.

The spelling of 2155322 in words is "two million, one hundred fifty-five thousand, three hundred twenty-two".