115280663 has 4 divisors (see below), whose sum is σ = 115759248. Its totient is φ = 114802080.

The previous prime is 115280653. The next prime is 115280677. The reversal of 115280663 is 366082511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115280663 - 2⁴ = 115280647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115280603) 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, 238931 + ... + 239412.

It is an arithmetic number, because the mean of its divisors is an integer number (28939812).

Almost surely, 2^115280663 is an apocalyptic number.

115280663 is a deficient number, since it is larger than the sum of its proper divisors (478585).

115280663 is an equidigital number, since it uses as much as digits as its factorization.

115280663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478584.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 115280663 is about 10736.8833001016. The cubic root of 115280663 is about 486.6896999690.

The spelling of 115280663 in words is "one hundred fifteen million, two hundred eighty thousand, six hundred sixty-three".