115211045 has 8 divisors (see below), whose sum is σ = 138858360. Its totient is φ = 91765440.

The previous prime is 115211039. The next prime is 115211059. The reversal of 115211045 is 540112511.

It can be written as a sum of positive squares in 4 ways, for example, as 62995969 + 52215076 = 7937^2 + 7226^2 .

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

It is not a de Polignac number, because 115211045 - 2⁶ = 115210981 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49166 + ... + 51455.

It is an arithmetic number, because the mean of its divisors is an integer number (17357295).

Almost surely, 2^115211045 is an apocalyptic number.

It is an amenable number.

115211045 is a deficient number, since it is larger than the sum of its proper divisors (23647315).

115211045 is a wasteful number, since it uses less digits than its factorization.

115211045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100855.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 115211045 is about 10733.6408082253. The cubic root of 115211045 is about 486.5917095936.

Adding to 115211045 its reverse (540112511), we get a palindrome (655323556).

The spelling of 115211045 in words is "one hundred fifteen million, two hundred eleven thousand, forty-five".