115042045 has 4 divisors (see below), whose sum is σ = 138050460. Its totient is φ = 92033632.

The previous prime is 115042019. The next prime is 115042063. The reversal of 115042045 is 540240511.

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 89529444 + 25512601 = 9462^2 + 5051^2 .

It is a cyclic number.

It is not a de Polignac number, because 115042045 - 2¹⁵ = 115009277 is a prime.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 11504200 + ... + 11504209.

It is an arithmetic number, because the mean of its divisors is an integer number (34512615).

Almost surely, 2^115042045 is an apocalyptic number.

It is an amenable number.

115042045 is a deficient number, since it is larger than the sum of its proper divisors (23008415).

115042045 is an equidigital number, since it uses as much as digits as its factorization.

115042045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23008414.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 115042045 is about 10725.7654738485. The cubic root of 115042045 is about 486.3536703771.

Adding to 115042045 its reverse (540240511), we get a palindrome (655282556).

The spelling of 115042045 in words is "one hundred fifteen million, forty-two thousand, forty-five".