115565451 has 4 divisors (see below), whose sum is σ = 154087272. Its totient is φ = 77043632.

The previous prime is 115565413. The next prime is 115565453. The reversal of 115565451 is 154565511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115565451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115565453) 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, 19260906 + ... + 19260911.

It is an arithmetic number, because the mean of its divisors is an integer number (38521818).

Almost surely, 2^115565451 is an apocalyptic number.

115565451 is a deficient number, since it is larger than the sum of its proper divisors (38521821).

115565451 is an equidigital number, since it uses as much as digits as its factorization.

115565451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38521820.

The product of its digits is 15000, while the sum is 33.

The square root of 115565451 is about 10750.1372549377. The cubic root of 115565451 is about 487.0901412467.

The spelling of 115565451 in words is "one hundred fifteen million, five hundred sixty-five thousand, four hundred fifty-one".