2227531 has 2 divisors, whose sum is σ = 2227532. Its totient is φ = 2227530.

The previous prime is 2227513. The next prime is 2227543. The reversal of 2227531 is 1357222.

Together with previous prime (2227513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2227531 - 2⁵ = 2227499 is a prime.

It is a super-2 number, since 2×2227531² = 9923788711922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2227501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1113765 + 1113766.

It is an arithmetic number, because the mean of its divisors is an integer number (1113766).

2^2227531 is an apocalyptic number.

2227531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2227531 is an equidigital number, since it uses as much as digits as its factorization.

2227531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 22.

The square root of 2227531 is about 1492.4915410146. The cubic root of 2227531 is about 130.5994212104.

The spelling of 2227531 in words is "two million, two hundred twenty-seven thousand, five hundred thirty-one".