2817251 has 2 divisors, whose sum is σ = 2817252. Its totient is φ = 2817250.

The previous prime is 2817239. The next prime is 2817253. The reversal of 2817251 is 1527182.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2817251 is a prime.

Together with 2817253, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2817251.

It is not a weakly prime, because it can be changed into another prime (2817253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1408625 + 1408626.

It is an arithmetic number, because the mean of its divisors is an integer number (1408626).

2^2817251 is an apocalyptic number.

2817251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2817251 is an equidigital number, since it uses as much as digits as its factorization.

2817251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1120, while the sum is 26.

The square root of 2817251 is about 1678.4668599648. The cubic root of 2817251 is about 141.2348416135.

The spelling of 2817251 in words is "two million, eight hundred seventeen thousand, two hundred fifty-one".