2591012 has 6 divisors (see below), whose sum is σ = 4534278. Its totient is φ = 1295504.

The previous prime is 2590997. The next prime is 2591023. The reversal of 2591012 is 2101952.

It can be written as a sum of positive squares in only one way, i.e., 2540836 + 50176 = 1594^2 + 224^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 323873 + ... + 323880.

It is an arithmetic number, because the mean of its divisors is an integer number (755713).

2^2591012 is an apocalyptic number.

It is an amenable number.

2591012 is a deficient number, since it is larger than the sum of its proper divisors (1943266).

2591012 is a wasteful number, since it uses less digits than its factorization.

2591012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647757 (or 647755 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2591012 is about 1609.6620763378. The cubic root of 2591012 is about 137.3482535292.

Adding to 2591012 its reverse (2101952), we get a palindrome (4692964).

The spelling of 2591012 in words is "two million, five hundred ninety-one thousand, twelve".