2235631 has 2 divisors, whose sum is σ = 2235632. Its totient is φ = 2235630.

The previous prime is 2235617. The next prime is 2235637. The reversal of 2235631 is 1365322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2235631 - 2⁵ = 2235599 is a prime.

It is a super-2 number, since 2×2235631² = 9996091936322, which contains 22 as substring.

2235631 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2235637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1117815 + 1117816.

It is an arithmetic number, because the mean of its divisors is an integer number (1117816).

2^2235631 is an apocalyptic number.

2235631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2235631 is an equidigital number, since it uses as much as digits as its factorization.

2235631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 2235631 is about 1495.2026618489. The cubic root of 2235631 is about 130.7575298465.

It can be divided in two parts, 22 and 35631, that added together give a palindrome (35653).

The spelling of 2235631 in words is "two million, two hundred thirty-five thousand, six hundred thirty-one".