115290515279 has 4 divisors (see below), whose sum is σ = 115291199184. Its totient is φ = 115289831376.

The previous prime is 115290515243. The next prime is 115290515287. The reversal of 115290515279 is 972515092511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 972515092511 = 19 ⋅51185004869.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115290515279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115290514279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110219 + ... + 492675.

It is an arithmetic number, because the mean of its divisors is an integer number (28822799796).

Almost surely, 2^115290515279 is an apocalyptic number.

115290515279 is a deficient number, since it is larger than the sum of its proper divisors (683905).

115290515279 is an equidigital number, since it uses as much as digits as its factorization.

115290515279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683904.

The product of its (nonzero) digits is 283500, while the sum is 47.

The spelling of 115290515279 in words is "one hundred fifteen billion, two hundred ninety million, five hundred fifteen thousand, two hundred seventy-nine".