115440331 has 2 divisors, whose sum is σ = 115440332. Its totient is φ = 115440330.

The previous prime is 115440323. The next prime is 115440341. The reversal of 115440331 is 133044511.

It is a weak prime.

It is an emirp because it is prime and its reverse (133044511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115440331 - 2³ = 115440323 is a prime.

It is a super-2 number, since 2×115440331² = 26652940042779122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115440341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57720165 + 57720166.

It is an arithmetic number, because the mean of its divisors is an integer number (57720166).

Almost surely, 2^115440331 is an apocalyptic number.

115440331 is a deficient number, since it is larger than the sum of its proper divisors (1).

115440331 is an equidigital number, since it uses as much as digits as its factorization.

115440331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 115440331 is about 10744.3162183547. The cubic root of 115440331 is about 486.9142907491.

Adding to 115440331 its reverse (133044511), we get a palindrome (248484842).

The spelling of 115440331 in words is "one hundred fifteen million, four hundred forty thousand, three hundred thirty-one".