2257231 has 4 divisors (see below), whose sum is σ = 2266272. Its totient is φ = 2248192.

The previous prime is 2257207. The next prime is 2257237. The reversal of 2257231 is 1327522.

2257231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2257231 - 2⁷ = 2257103 is a prime.

It is a super-2 number, since 2×2257231² = 10190183574722, which contains 22 as substring.

It is a Duffinian number.

2257231 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4135 + ... + 4648.

It is an arithmetic number, because the mean of its divisors is an integer number (566568).

2^2257231 is an apocalyptic number.

2257231 is a deficient number, since it is larger than the sum of its proper divisors (9041).

2257231 is an equidigital number, since it uses as much as digits as its factorization.

2257231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9040.

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

The square root of 2257231 is about 1502.4083998700. The cubic root of 2257231 is about 131.1772942749.

The spelling of 2257231 in words is "two million, two hundred fifty-seven thousand, two hundred thirty-one".