115401212040545 has 4 divisors (see below), whose sum is σ = 138481454448660. Its totient is φ = 92320969632432.

The previous prime is 115401212040539. The next prime is 115401212040629. The reversal of 115401212040545 is 545040212104511.

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 88607430575104 + 26793781465441 = 9413152^2 + 5176271^2 .

It is a cyclic number.

It is not a de Polignac number, because 115401212040545 - 2⁴ = 115401212040529 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 11540121204050 + ... + 11540121204059.

It is an arithmetic number, because the mean of its divisors is an integer number (34620363612165).

Almost surely, 2^{115401212040545} is an apocalyptic number.

It is an amenable number.

115401212040545 is a deficient number, since it is larger than the sum of its proper divisors (23080242408115).

115401212040545 is an equidigital number, since it uses as much as digits as its factorization.

115401212040545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23080242408114.

The product of its (nonzero) digits is 32000, while the sum is 35.

The spelling of 115401212040545 in words is "one hundred fifteen trillion, four hundred one billion, two hundred twelve million, forty thousand, five hundred forty-five".