115277245 has 4 divisors (see below), whose sum is σ = 138332700. Its totient is φ = 92221792.

The previous prime is 115277243. The next prime is 115277273. The reversal of 115277245 is 542772511.

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 23921881 + 91355364 = 4891^2 + 9558^2 .

It is a cyclic number.

It is not a de Polignac number, because 115277245 - 2¹ = 115277243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115277245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115277243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11527720 + ... + 11527729.

It is an arithmetic number, because the mean of its divisors is an integer number (34583175).

Almost surely, 2^115277245 is an apocalyptic number.

It is an amenable number.

115277245 is a deficient number, since it is larger than the sum of its proper divisors (23055455).

115277245 is an equidigital number, since it uses as much as digits as its factorization.

115277245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23055454.

The product of its digits is 19600, while the sum is 34.

The square root of 115277245 is about 10736.7241279638. The cubic root of 115277245 is about 486.6848899058.

The spelling of 115277245 in words is "one hundred fifteen million, two hundred seventy-seven thousand, two hundred forty-five".