115012530505 has 4 divisors (see below), whose sum is σ = 138015036612. Its totient is φ = 92010024400.

The previous prime is 115012530491. The next prime is 115012530509. The reversal of 115012530505 is 505035210511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80649752121 + 34362778384 = 283989^2 + 185372^2 .

It is a de Polignac number, because none of the positive numbers 2^k-115012530505 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115012530509) 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, 11501253046 + ... + 11501253055.

It is an arithmetic number, because the mean of its divisors is an integer number (34503759153).

Almost surely, 2^115012530505 is an apocalyptic number.

It is an amenable number.

115012530505 is a deficient number, since it is larger than the sum of its proper divisors (23002506107).

115012530505 is an equidigital number, since it uses as much as digits as its factorization.

115012530505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23002506106.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 115012530505 in words is "one hundred fifteen billion, twelve million, five hundred thirty thousand, five hundred five".