228115347 has 4 divisors (see below), whose sum is σ = 304153800. Its totient is φ = 152076896.

The previous prime is 228115337. The next prime is 228115399. The reversal of 228115347 is 743511822.

228115347 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 228115347 - 2⁴ = 228115331 is a prime.

It is a super-2 number, since 2×228115347² = 104073223073860818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228115337) 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, 38019222 + ... + 38019227.

It is an arithmetic number, because the mean of its divisors is an integer number (76038450).

Almost surely, 2^228115347 is an apocalyptic number.

228115347 is a deficient number, since it is larger than the sum of its proper divisors (76038453).

228115347 is an equidigital number, since it uses as much as digits as its factorization.

228115347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76038452.

The product of its digits is 13440, while the sum is 33.

The square root of 228115347 is about 15103.4879084270. The cubic root of 228115347 is about 611.0144787067.

The spelling of 228115347 in words is "two hundred twenty-eight million, one hundred fifteen thousand, three hundred forty-seven".