231244073 has 2 divisors, whose sum is σ = 231244074. Its totient is φ = 231244072.

The previous prime is 231244063. The next prime is 231244099. The reversal of 231244073 is 370442132.

It is an a-pointer prime, because the next prime (231244099) can be obtained adding 231244073 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230219929 + 1024144 = 15173^2 + 1012^2 .

It is a cyclic number.

It is not a de Polignac number, because 231244073 - 2⁶ = 231244009 is a prime.

It is not a weakly prime, because it can be changed into another prime (231244033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115622036 + 115622037.

It is an arithmetic number, because the mean of its divisors is an integer number (115622037).

Almost surely, 2^231244073 is an apocalyptic number.

It is an amenable number.

231244073 is a deficient number, since it is larger than the sum of its proper divisors (1).

231244073 is an equidigital number, since it uses as much as digits as its factorization.

231244073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 231244073 is about 15206.7114459373. The cubic root of 231244073 is about 613.7952690936.

The spelling of 231244073 in words is "two hundred thirty-one million, two hundred forty-four thousand, seventy-three".