228149193 has 8 divisors (see below), whose sum is σ = 304527328. Its totient is φ = 151935264.

The previous prime is 228149191. The next prime is 228149237. The reversal of 228149193 is 391941822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228149193 - 2¹ = 228149191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228149191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37771 + ... + 43392.

It is an arithmetic number, because the mean of its divisors is an integer number (38065916).

Almost surely, 2^228149193 is an apocalyptic number.

It is an amenable number.

228149193 is a deficient number, since it is larger than the sum of its proper divisors (76378135).

228149193 is an equidigital number, since it uses as much as digits as its factorization.

228149193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82103.

The product of its digits is 31104, while the sum is 39.

The square root of 228149193 is about 15104.6083365309. The cubic root of 228149193 is about 611.0446964212.

The spelling of 228149193 in words is "two hundred twenty-eight million, one hundred forty-nine thousand, one hundred ninety-three".