2811249 has 12 divisors (see below), whose sum is σ = 4640896. Its totient is φ = 1606392.

The previous prime is 2811241. The next prime is 2811257. The reversal of 2811249 is 9421182.

It is an interprime number because it is at equal distance from previous prime (2811241) and next prime (2811257).

It is not a de Polignac number, because 2811249 - 2³ = 2811241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2811241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22249 + ... + 22374.

2^2811249 is an apocalyptic number.

It is an amenable number.

2811249 is a deficient number, since it is larger than the sum of its proper divisors (1829647).

2811249 is a wasteful number, since it uses less digits than its factorization.

2811249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44636 (or 44633 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 2811249 is about 1676.6779655020. The cubic root of 2811249 is about 141.1344725871.

The spelling of 2811249 in words is "two million, eight hundred eleven thousand, two hundred forty-nine".