227980187 has 2 divisors, whose sum is σ = 227980188. Its totient is φ = 227980186.

The previous prime is 227980177. The next prime is 227980237. The reversal of 227980187 is 781089722.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 227980187 - 2¹⁴ = 227963803 is a prime.

It is not a weakly prime, because it can be changed into another prime (227980147) 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 as a sum of consecutive naturals, namely, 113990093 + 113990094.

It is an arithmetic number, because the mean of its divisors is an integer number (113990094).

Almost surely, 2^227980187 is an apocalyptic number.

227980187 is a deficient number, since it is larger than the sum of its proper divisors (1).

227980187 is an equidigital number, since it uses as much as digits as its factorization.

227980187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 227980187 is about 15099.0127822981. The cubic root of 227980187 is about 610.8937780259.

The spelling of 227980187 in words is "two hundred twenty-seven million, nine hundred eighty thousand, one hundred eighty-seven".