115866273 has 4 divisors (see below), whose sum is σ = 154488368. Its totient is φ = 77244180.

The previous prime is 115866269. The next prime is 115866319. The reversal of 115866273 is 372668511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 372668511 = 3 ⋅124222837.

It is not a de Polignac number, because 115866273 - 2² = 115866269 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115866253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19311043 + ... + 19311048.

It is an arithmetic number, because the mean of its divisors is an integer number (38622092).

Almost surely, 2^115866273 is an apocalyptic number.

It is an amenable number.

115866273 is a deficient number, since it is larger than the sum of its proper divisors (38622095).

115866273 is an equidigital number, since it uses as much as digits as its factorization.

115866273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38622094.

The product of its digits is 60480, while the sum is 39.

The square root of 115866273 is about 10764.1197039052. The cubic root of 115866273 is about 487.5124141480.

The spelling of 115866273 in words is "one hundred fifteen million, eight hundred sixty-six thousand, two hundred seventy-three".