105645227 has 2 divisors, whose sum is σ = 105645228. Its totient is φ = 105645226.

The previous prime is 105645217. The next prime is 105645269. The reversal of 105645227 is 722546501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105645227 - 2⁸ = 105644971 is a prime.

It is a super-2 number, since 2×105645227² = 22321827975763058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105645193 and 105645202.

It is not a weakly prime, because it can be changed into another prime (105645217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52822613 + 52822614.

It is an arithmetic number, because the mean of its divisors is an integer number (52822614).

Almost surely, 2^105645227 is an apocalyptic number.

105645227 is a deficient number, since it is larger than the sum of its proper divisors (1).

105645227 is an equidigital number, since it uses as much as digits as its factorization.

105645227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 105645227 is about 10278.3864005981. The cubic root of 105645227 is about 472.7337693398.

The spelling of 105645227 in words is "one hundred five million, six hundred forty-five thousand, two hundred twenty-seven".