115476221 has 4 divisors (see below), whose sum is σ = 131972832. Its totient is φ = 98979612.

The previous prime is 115476211. The next prime is 115476247. The reversal of 115476221 is 122674511.

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: 122674511 = 59 ⋅2079229.

It is a cyclic number.

It is not a de Polignac number, because 115476221 - 2¹⁰ = 115475197 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 (115476211) 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, 8248295 + ... + 8248308.

It is an arithmetic number, because the mean of its divisors is an integer number (32993208).

Almost surely, 2^115476221 is an apocalyptic number.

It is an amenable number.

115476221 is a deficient number, since it is larger than the sum of its proper divisors (16496611).

115476221 is an equidigital number, since it uses as much as digits as its factorization.

115476221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16496610.

The product of its digits is 3360, while the sum is 29.

The square root of 115476221 is about 10745.9862739536. The cubic root of 115476221 is about 486.9647455109.

The spelling of 115476221 in words is "one hundred fifteen million, four hundred seventy-six thousand, two hundred twenty-one".