240623231 has 2 divisors, whose sum is σ = 240623232. Its totient is φ = 240623230.

The previous prime is 240623203. The next prime is 240623249. The reversal of 240623231 is 132326042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240623231 - 2⁶ = 240623167 is a prime.

It is a super-2 number, since 2×240623231² = 115799078593758722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 240623197 and 240623206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240623261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120311615 + 120311616.

It is an arithmetic number, because the mean of its divisors is an integer number (120311616).

Almost surely, 2^240623231 is an apocalyptic number.

240623231 is a deficient number, since it is larger than the sum of its proper divisors (1).

240623231 is an equidigital number, since it uses as much as digits as its factorization.

240623231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 240623231 is about 15512.0350373508. The cubic root of 240623231 is about 621.9839594641.

Adding to 240623231 its reverse (132326042), we get a palindrome (372949273).

The spelling of 240623231 in words is "two hundred forty million, six hundred twenty-three thousand, two hundred thirty-one".