6131312 has 30 divisors (see below), whose sum is σ = 13061664. Its totient is φ = 2786080.

The previous prime is 6131311. The next prime is 6131329. The reversal of 6131312 is 2131316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6131311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 353 + ... + 3519.

Almost surely, 2^6131312 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 6131312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6530832).

6131312 is an abundant number, since it is smaller than the sum of its proper divisors (6930352).

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

6131312 is a wasteful number, since it uses less digits than its factorization.

6131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197 (or 3180 counting only the distinct ones).

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

The square root of 6131312 is about 2476.1486223569. The cubic root of 6131312 is about 183.0281143663.

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

The spelling of 6131312 in words is "six million, one hundred thirty-one thousand, three hundred twelve".