2642231 has 2 divisors, whose sum is σ = 2642232. Its totient is φ = 2642230.

The previous prime is 2642203. The next prime is 2642239. The reversal of 2642231 is 1322462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2642231 is a prime.

It is a super-2 number, since 2×2642231² = 13962769314722, which contains 22 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 (2642239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1321115 + 1321116.

It is an arithmetic number, because the mean of its divisors is an integer number (1321116).

2^2642231 is an apocalyptic number.

2642231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2642231 is an equidigital number, since it uses as much as digits as its factorization.

2642231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 20.

The square root of 2642231 is about 1625.4940787342. The cubic root of 2642231 is about 138.2473858461.

Adding to 2642231 its reverse (1322462), we get a palindrome (3964693).

The spelling of 2642231 in words is "two million, six hundred forty-two thousand, two hundred thirty-one".