2251331 has 2 divisors, whose sum is σ = 2251332. Its totient is φ = 2251330.

The previous prime is 2251297. The next prime is 2251343. The reversal of 2251331 is 1331522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2251331 is a prime.

It is a super-2 number, since 2×2251331² = 10136982543122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2251031) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125665 + 1125666.

It is an arithmetic number, because the mean of its divisors is an integer number (1125666).

2^2251331 is an apocalyptic number.

2251331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251331 is an equidigital number, since it uses as much as digits as its factorization.

2251331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 17.

The square root of 2251331 is about 1500.4436010727. The cubic root of 2251331 is about 131.0629031860.

Adding to 2251331 its reverse (1331522), we get a palindrome (3582853).

The spelling of 2251331 in words is "two million, two hundred fifty-one thousand, three hundred thirty-one".