115444321 has 2 divisors, whose sum is σ = 115444322. Its totient is φ = 115444320.

The previous prime is 115444319. The next prime is 115444339. The reversal of 115444321 is 123444511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115347600 + 96721 = 10740^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 115444321 - 2¹ = 115444319 is a prime.

Together with 115444319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (115445321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57722160 + 57722161.

It is an arithmetic number, because the mean of its divisors is an integer number (57722161).

Almost surely, 2^115444321 is an apocalyptic number.

It is an amenable number.

115444321 is a deficient number, since it is larger than the sum of its proper divisors (1).

115444321 is an equidigital number, since it uses as much as digits as its factorization.

115444321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 115444321 is about 10744.5018963189. The cubic root of 115444321 is about 486.9199004744.

Adding to 115444321 its reverse (123444511), we get a palindrome (238888832).

The spelling of 115444321 in words is "one hundred fifteen million, four hundred forty-four thousand, three hundred twenty-one".