115112305242545 has 8 divisors (see below), whose sum is σ = 148760517544296. Its totient is φ = 85006010025216.

The previous prime is 115112305242533. The next prime is 115112305242617. The reversal of 115112305242545 is 545242503211511.

It can be written as a sum of positive squares in 4 ways, for example, as 10672060643344 + 104440244599201 = 3266812^2 + 10219601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115112305242545 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885479271032 + ... + 885479271161.

It is an arithmetic number, because the mean of its divisors is an integer number (18595064693037).

Almost surely, 2^{115112305242545} is an apocalyptic number.

It is an amenable number.

115112305242545 is a deficient number, since it is larger than the sum of its proper divisors (33648212301751).

115112305242545 is a wasteful number, since it uses less digits than its factorization.

115112305242545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770958542211.

The product of its (nonzero) digits is 240000, while the sum is 41.

The spelling of 115112305242545 in words is "one hundred fifteen trillion, one hundred twelve billion, three hundred five million, two hundred forty-two thousand, five hundred forty-five".