231410447 has 2 divisors, whose sum is σ = 231410448. Its totient is φ = 231410446.

The previous prime is 231410419. The next prime is 231410461. The reversal of 231410447 is 744014132.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231410447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231410467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115705223 + 115705224.

It is an arithmetic number, because the mean of its divisors is an integer number (115705224).

Almost surely, 2^231410447 is an apocalyptic number.

231410447 is a deficient number, since it is larger than the sum of its proper divisors (1).

231410447 is an equidigital number, since it uses as much as digits as its factorization.

231410447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 231410447 is about 15212.1808758639. The cubic root of 231410447 is about 613.9424369637.

Adding to 231410447 its reverse (744014132), we get a palindrome (975424579).

The spelling of 231410447 in words is "two hundred thirty-one million, four hundred ten thousand, four hundred forty-seven".