115512245 has 4 divisors (see below), whose sum is σ = 138614700. Its totient is φ = 92409792.

The previous prime is 115512239. The next prime is 115512269. The reversal of 115512245 is 542215511.

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 85119076 + 30393169 = 9226^2 + 5513^2 .

It is a cyclic number.

It is not a de Polignac number, because 115512245 - 2⁶ = 115512181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11551220 + ... + 11551229.

It is an arithmetic number, because the mean of its divisors is an integer number (34653675).

Almost surely, 2^115512245 is an apocalyptic number.

It is an amenable number.

115512245 is a deficient number, since it is larger than the sum of its proper divisors (23102455).

115512245 is an equidigital number, since it uses as much as digits as its factorization.

115512245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23102454.

The product of its digits is 2000, while the sum is 26.

The square root of 115512245 is about 10747.6623039617. The cubic root of 115512245 is about 487.0153781403.

Adding to 115512245 its reverse (542215511), we get a palindrome (657727756).

The spelling of 115512245 in words is "one hundred fifteen million, five hundred twelve thousand, two hundred forty-five".