2813049 has 10 divisors (see below), whose sum is σ = 4202330. Its totient is φ = 1875312.

The previous prime is 2813047. The next prime is 2813053. The reversal of 2813049 is 9403182.

It can be written as a sum of positive squares in only one way, i.e., 1587600 + 1225449 = 1260^2 + 1107^2 .

It is not a de Polignac number, because 2813049 - 2¹ = 2813047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2813047) 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 9 ways as a sum of consecutive naturals, for example, 17284 + ... + 17445.

It is an arithmetic number, because the mean of its divisors is an integer number (420233).

2^2813049 is an apocalyptic number.

It is an amenable number.

2813049 is a deficient number, since it is larger than the sum of its proper divisors (1389281).

2813049 is an equidigital number, since it uses as much as digits as its factorization.

2813049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34741 (or 34732 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 2813049 is about 1677.2146553140. The cubic root of 2813049 is about 141.1645882463.

The spelling of 2813049 in words is "two million, eight hundred thirteen thousand, forty-nine".