227616189 has 4 divisors (see below), whose sum is σ = 303488256. Its totient is φ = 151744124.

The previous prime is 227616173. The next prime is 227616197. The reversal of 227616189 is 981616722.

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.

It is a cyclic number.

It is not a de Polignac number, because 227616189 - 2⁴ = 227616173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 227616189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227616139) 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, 37936029 + ... + 37936034.

It is an arithmetic number, because the mean of its divisors is an integer number (75872064).

Almost surely, 2^227616189 is an apocalyptic number.

It is an amenable number.

227616189 is a deficient number, since it is larger than the sum of its proper divisors (75872067).

227616189 is an equidigital number, since it uses as much as digits as its factorization.

227616189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75872066.

The product of its digits is 72576, while the sum is 42.

The square root of 227616189 is about 15086.9542651922. The cubic root of 227616189 is about 610.5684828542.

The spelling of 227616189 in words is "two hundred twenty-seven million, six hundred sixteen thousand, one hundred eighty-nine".