2631231 has 8 divisors (see below), whose sum is σ = 3898160. Its totient is φ = 1754136.

The previous prime is 2631221. The next prime is 2631241. The reversal of 2631231 is 1321362.

2631231 is a `hidden beast` number, since 2 + 631 + 2 + 31 = 666.

2631231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2631221) and next prime (2631241).

It is not a de Polignac number, because 2631231 - 2⁷ = 2631103 is a prime.

It is a super-2 number, since 2×2631231² = 13846753150722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631221) 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 7 ways as a sum of consecutive naturals, for example, 48700 + ... + 48753.

It is an arithmetic number, because the mean of its divisors is an integer number (487270).

2^2631231 is an apocalyptic number.

2631231 is a deficient number, since it is larger than the sum of its proper divisors (1266929).

2631231 is an equidigital number, since it uses as much as digits as its factorization.

2631231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97462 (or 97456 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 2631231 is about 1622.1069631809. The cubic root of 2631231 is about 138.0552708660.

Adding to 2631231 its reverse (1321362), we get a palindrome (3952593).

The spelling of 2631231 in words is "two million, six hundred thirty-one thousand, two hundred thirty-one".