115243481 has 2 divisors, whose sum is σ = 115243482. Its totient is φ = 115243480.

The previous prime is 115243463. The next prime is 115243489. The reversal of 115243481 is 184342511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112699456 + 2544025 = 10616^2 + 1595^2 .

It is a cyclic number.

It is not a de Polignac number, because 115243481 - 2²⁶ = 48134617 is a prime.

It is a super-2 number, since 2×115243481² = 26562119825994722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (115243489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57621740 + 57621741.

It is an arithmetic number, because the mean of its divisors is an integer number (57621741).

Almost surely, 2^115243481 is an apocalyptic number.

It is an amenable number.

115243481 is a deficient number, since it is larger than the sum of its proper divisors (1).

115243481 is an equidigital number, since it uses as much as digits as its factorization.

115243481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 29.

The square root of 115243481 is about 10735.1516523988. The cubic root of 115243481 is about 486.6373695902.

Adding to 115243481 its reverse (184342511), we get a palindrome (299585992).

The spelling of 115243481 in words is "one hundred fifteen million, two hundred forty-three thousand, four hundred eighty-one".