164031227 has 2 divisors, whose sum is σ = 164031228. Its totient is φ = 164031226.

The previous prime is 164031187. The next prime is 164031253. The reversal of 164031227 is 722130461.

It is an a-pointer prime, because the next prime (164031253) can be obtained adding 164031227 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164031227 - 2¹⁰ = 164030203 is a prime.

It is a super-2 number, since 2×164031227² = 53812486862251058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 164031196 and 164031205.

It is not a weakly prime, because it can be changed into another prime (164031727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82015613 + 82015614.

It is an arithmetic number, because the mean of its divisors is an integer number (82015614).

Almost surely, 2^164031227 is an apocalyptic number.

164031227 is a deficient number, since it is larger than the sum of its proper divisors (1).

164031227 is an equidigital number, since it uses as much as digits as its factorization.

164031227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 164031227 is about 12807.4676263499. The cubic root of 164031227 is about 547.4051066053.

Adding to 164031227 its reverse (722130461), we get a palindrome (886161688).

The spelling of 164031227 in words is "one hundred sixty-four million, thirty-one thousand, two hundred twenty-seven".