2247851 has 2 divisors, whose sum is σ = 2247852. Its totient is φ = 2247850.

The previous prime is 2247811. The next prime is 2247853. The reversal of 2247851 is 1587422.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2247851 is a prime.

Together with 2247853, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2²⁰ + 2²⁰ + 4⁴ + 7⁶ + 8⁵ + 5² + 1 .

It is not a weakly prime, because it can be changed into another prime (2247853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1123925 + 1123926.

It is an arithmetic number, because the mean of its divisors is an integer number (1123926).

2^2247851 is an apocalyptic number.

2247851 is the 671-st centered decagonal number.

2247851 is a deficient number, since it is larger than the sum of its proper divisors (1).

2247851 is an equidigital number, since it uses as much as digits as its factorization.

2247851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 29.

The square root of 2247851 is about 1499.2834955405. The cubic root of 2247851 is about 130.9953381011.

The spelling of 2247851 in words is "two million, two hundred forty-seven thousand, eight hundred fifty-one".