2231351 has 2 divisors, whose sum is σ = 2231352. Its totient is φ = 2231350.

The previous prime is 2231329. The next prime is 2231357. The reversal of 2231351 is 1531322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2231351 - 2¹⁴ = 2214967 is a prime.

It is a super-3 number, since 3×2231351³ = 33329203130281609653, which contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2231357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115675 + 1115676.

It is an arithmetic number, because the mean of its divisors is an integer number (1115676).

2^2231351 is an apocalyptic number.

2231351 is a deficient number, since it is larger than the sum of its proper divisors (1).

2231351 is an equidigital number, since it uses as much as digits as its factorization.

2231351 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 2231351 is about 1493.7707320737. The cubic root of 2231351 is about 130.6740336966.

Adding to 2231351 its reverse (1531322), we get a palindrome (3762673).

The spelling of 2231351 in words is "two million, two hundred thirty-one thousand, three hundred fifty-one".