1266164227 has 2 divisors, whose sum is σ = 1266164228. Its totient is φ = 1266164226.

The previous prime is 1266164203. The next prime is 1266164231. The reversal of 1266164227 is 7224616621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1266164227 - 2¹⁹ = 1265639939 is a prime.

It is not a weakly prime, because it can be changed into another prime (1266164297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633082113 + 633082114.

It is an arithmetic number, because the mean of its divisors is an integer number (633082114).

Almost surely, 2^1266164227 is an apocalyptic number.

1266164227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266164227 is an equidigital number, since it uses as much as digits as its factorization.

1266164227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 1266164227 is about 35583.2014720430. The cubic root of 1266164227 is about 1081.8407756540.

The spelling of 1266164227 in words is "one billion, two hundred sixty-six million, one hundred sixty-four thousand, two hundred twenty-seven".