240413231 has 2 divisors, whose sum is σ = 240413232. Its totient is φ = 240413230.

The previous prime is 240413197. The next prime is 240413233. The reversal of 240413231 is 132314042.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240413231 is a prime.

It is a super-2 number, since 2×240413231² = 115597043279718722, which contains 22 as substring.

Together with 240413233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240413233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120206615 + 120206616.

It is an arithmetic number, because the mean of its divisors is an integer number (120206616).

Almost surely, 2^240413231 is an apocalyptic number.

240413231 is a deficient number, since it is larger than the sum of its proper divisors (1).

240413231 is an equidigital number, since it uses as much as digits as its factorization.

240413231 is an odious number, because the sum of its binary digits is odd.

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

The square root of 240413231 is about 15505.2646220566. The cubic root of 240413231 is about 621.8029646820.

Adding to 240413231 its reverse (132314042), we get a palindrome (372727273).

It can be divided in two parts, 24041 and 3231, that added together give a palindrome (27272).

The spelling of 240413231 in words is "two hundred forty million, four hundred thirteen thousand, two hundred thirty-one".