102243227 has 2 divisors, whose sum is σ = 102243228. Its totient is φ = 102243226.

The previous prime is 102243223. The next prime is 102243263. The reversal of 102243227 is 722342201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102243227 - 2² = 102243223 is a prime.

It is not a weakly prime, because it can be changed into another prime (102243221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51121613 + 51121614.

It is an arithmetic number, because the mean of its divisors is an integer number (51121614).

Almost surely, 2^102243227 is an apocalyptic number.

102243227 is a deficient number, since it is larger than the sum of its proper divisors (1).

102243227 is an equidigital number, since it uses as much as digits as its factorization.

102243227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 102243227 is about 10111.5392992363. The cubic root of 102243227 is about 467.6039625045.

Adding to 102243227 its reverse (722342201), we get a palindrome (824585428).

The spelling of 102243227 in words is "one hundred two million, two hundred forty-three thousand, two hundred twenty-seven".