231164443 has 2 divisors, whose sum is σ = 231164444. Its totient is φ = 231164442.

The previous prime is 231164413. The next prime is 231164473. The reversal of 231164443 is 344461132.

It is a balanced prime because it is at equal distance from previous prime (231164413) and next prime (231164473).

It is a cyclic number.

It is not a de Polignac number, because 231164443 - 2¹³ = 231156251 is a prime.

It is not a weakly prime, because it can be changed into another prime (231164413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115582221 + 115582222.

It is an arithmetic number, because the mean of its divisors is an integer number (115582222).

Almost surely, 2^231164443 is an apocalyptic number.

231164443 is a deficient number, since it is larger than the sum of its proper divisors (1).

231164443 is an equidigital number, since it uses as much as digits as its factorization.

231164443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

The square root of 231164443 is about 15204.0929686713. The cubic root of 231164443 is about 613.7248065617.

The spelling of 231164443 in words is "two hundred thirty-one million, one hundred sixty-four thousand, four hundred forty-three".