2591312 has 10 divisors (see below), whose sum is σ = 5020698. Its totient is φ = 1295648.

The previous prime is 2591273. The next prime is 2591333. The reversal of 2591312 is 2131952.

It can be written as a sum of positive squares in only one way, i.e., 2572816 + 18496 = 1604^2 + 136^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80963 + ... + 80994.

2^2591312 is an apocalyptic number.

It is an amenable number.

2591312 is a deficient number, since it is larger than the sum of its proper divisors (2429386).

2591312 is a wasteful number, since it uses less digits than its factorization.

2591312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161965 (or 161959 counting only the distinct ones).

The product of its digits is 540, while the sum is 23.

The square root of 2591312 is about 1609.7552609015. The cubic root of 2591312 is about 137.3535542748.

The spelling of 2591312 in words is "two million, five hundred ninety-one thousand, three hundred twelve".