2131316 has 24 divisors (see below), whose sum is σ = 4142880. Its totient is φ = 951200.

The previous prime is 2131291. The next prime is 2131319. The reversal of 2131316 is 6131312.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2131294 and 2131303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131319) 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, 2186 + ... + 3006.

It is an arithmetic number, because the mean of its divisors is an integer number (172620).

2^2131316 is an apocalyptic number.

It is an amenable number.

2131316 is a deficient number, since it is larger than the sum of its proper divisors (2011564).

2131316 is a wasteful number, since it uses less digits than its factorization.

2131316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 893 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 2131316 is about 1459.9027364862. The cubic root of 2131316 is about 128.6913277771.

Adding to 2131316 its reverse (6131312), we get a palindrome (8262628).

The spelling of 2131316 in words is "two million, one hundred thirty-one thousand, three hundred sixteen".