232740247 has 2 divisors, whose sum is σ = 232740248. Its totient is φ = 232740246.

The previous prime is 232740229. The next prime is 232740269. The reversal of 232740247 is 742047232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 232740247 - 2²⁷ = 98522519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232740847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116370123 + 116370124.

It is an arithmetic number, because the mean of its divisors is an integer number (116370124).

Almost surely, 2^232740247 is an apocalyptic number.

232740247 is a deficient number, since it is larger than the sum of its proper divisors (1).

232740247 is an equidigital number, since it uses as much as digits as its factorization.

232740247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 232740247 is about 15255.8266573791. The cubic root of 232740247 is about 615.1161981072.

Adding to 232740247 its reverse (742047232), we get a palindrome (974787479).

The spelling of 232740247 in words is "two hundred thirty-two million, seven hundred forty thousand, two hundred forty-seven".