3111612 has 48 divisors (see below), whose sum is σ = 8789760. Its totient is φ = 836352.

The previous prime is 3111607. The next prime is 3111631. The reversal of 3111612 is 2161113.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3111591 and 3111600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339 + ... + 2517.

It is an arithmetic number, because the mean of its divisors is an integer number (183120).

Almost surely, 2^3111612 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4394880).

3111612 is an abundant number, since it is smaller than the sum of its proper divisors (5678148).

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

3111612 is a wasteful number, since it uses less digits than its factorization.

3111612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210 (or 2208 counting only the distinct ones).

The product of its digits is 36, while the sum is 15.

The square root of 3111612 is about 1763.9761903155. The cubic root of 3111612 is about 145.9918053823.

Adding to 3111612 its reverse (2161113), we get a palindrome (5272725).

The spelling of 3111612 in words is "three million, one hundred eleven thousand, six hundred twelve".