3128122 has 16 divisors (see below), whose sum is σ = 4973760. Its totient is φ = 1471392.

The previous prime is 3128107. The next prime is 3128129. The reversal of 3128122 is 2218213.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 3128122.

It is not an unprimeable number, because it can be changed into a prime (3128129) 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, 9838 + ... + 10150.

It is an arithmetic number, because the mean of its divisors is an integer number (310860).

Almost surely, 2^3128122 is an apocalyptic number.

3128122 is a deficient number, since it is larger than the sum of its proper divisors (1845638).

3128122 is a wasteful number, since it uses less digits than its factorization.

3128122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597.

The product of its digits is 192, while the sum is 19.

The square root of 3128122 is about 1768.6497674780. The cubic root of 3128122 is about 146.2495575510.

Subtracting from 3128122 its reverse (2218213), we obtain a palindrome (909909).

The spelling of 3128122 in words is "three million, one hundred twenty-eight thousand, one hundred twenty-two".