2813261 has 8 divisors (see below), whose sum is σ = 3175200. Its totient is φ = 2469040.

The previous prime is 2813257. The next prime is 2813267. The reversal of 2813261 is 1623182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2813261 - 2² = 2813257 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2813267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4091 + ... + 4728.

It is an arithmetic number, because the mean of its divisors is an integer number (396900).

2^2813261 is an apocalyptic number.

It is an amenable number.

2813261 is a deficient number, since it is larger than the sum of its proper divisors (361939).

2813261 is a wasteful number, since it uses less digits than its factorization.

2813261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8859.

The product of its digits is 576, while the sum is 23.

The square root of 2813261 is about 1677.2778541434. The cubic root of 2813261 is about 141.1681343559.

The spelling of 2813261 in words is "two million, eight hundred thirteen thousand, two hundred sixty-one".