123891227 has 2 divisors, whose sum is σ = 123891228. Its totient is φ = 123891226.

The previous prime is 123891211. The next prime is 123891233. The reversal of 123891227 is 722198321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123891227 - 2⁴ = 123891211 is a prime.

It is a super-2 number, since 2×123891227² = 30698072255131058, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123890227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61945613 + 61945614.

It is an arithmetic number, because the mean of its divisors is an integer number (61945614).

Almost surely, 2^123891227 is an apocalyptic number.

123891227 is a deficient number, since it is larger than the sum of its proper divisors (1).

123891227 is an equidigital number, since it uses as much as digits as its factorization.

123891227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 123891227 is about 11130.6436022361. The cubic root of 123891227 is about 498.5172432112.

The spelling of 123891227 in words is "one hundred twenty-three million, eight hundred ninety-one thousand, two hundred twenty-seven".