115240515427 has 2 divisors, whose sum is σ = 115240515428. Its totient is φ = 115240515426.

The previous prime is 115240515419. The next prime is 115240515457. The reversal of 115240515427 is 724515042511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115240515427 - 2³ = 115240515419 is a prime.

It is not a weakly prime, because it can be changed into another prime (115240515457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57620257713 + 57620257714.

It is an arithmetic number, because the mean of its divisors is an integer number (57620257714).

Almost surely, 2^115240515427 is an apocalyptic number.

115240515427 is a deficient number, since it is larger than the sum of its proper divisors (1).

115240515427 is an equidigital number, since it uses as much as digits as its factorization.

115240515427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56000, while the sum is 37.

Adding to 115240515427 its reverse (724515042511), we get a palindrome (839755557938).

The spelling of 115240515427 in words is "one hundred fifteen billion, two hundred forty million, five hundred fifteen thousand, four hundred twenty-seven".