231247007 has 2 divisors, whose sum is σ = 231247008. Its totient is φ = 231247006.

The previous prime is 231246989. The next prime is 231247031. The reversal of 231247007 is 700742132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231247007 - 2²⁰ = 230198431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231247087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115623503 + 115623504.

It is an arithmetic number, because the mean of its divisors is an integer number (115623504).

Almost surely, 2^231247007 is an apocalyptic number.

231247007 is a deficient number, since it is larger than the sum of its proper divisors (1).

231247007 is an equidigital number, since it uses as much as digits as its factorization.

231247007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 231247007 is about 15206.8079161933. The cubic root of 231247007 is about 613.7978650055.

Adding to 231247007 its reverse (700742132), we get a palindrome (931989139).

The spelling of 231247007 in words is "two hundred thirty-one million, two hundred forty-seven thousand, seven".