3113128 has 8 divisors (see below), whose sum is σ = 5837130. Its totient is φ = 1556560.

The previous prime is 3113111. The next prime is 3113129. The reversal of 3113128 is 8213113.

It can be written as a sum of positive squares in only one way, i.e., 2951524 + 161604 = 1718^2 + 402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (3113129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194563 + ... + 194578.

Almost surely, 2^3113128 is an apocalyptic number.

It is an amenable number.

3113128 is a deficient number, since it is larger than the sum of its proper divisors (2724002).

3113128 is a wasteful number, since it uses less digits than its factorization.

3113128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389147 (or 389143 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 3113128 is about 1764.4058490041. The cubic root of 3113128 is about 146.0155109561.

The spelling of 3113128 in words is "three million, one hundred thirteen thousand, one hundred twenty-eight".