1267163197 has 2 divisors, whose sum is σ = 1267163198. Its totient is φ = 1267163196.

The previous prime is 1267163083. The next prime is 1267163203. The reversal of 1267163197 is 7913617621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1218428836 + 48734361 = 34906^2 + 6981^2 .

It is a cyclic number.

It is not a de Polignac number, because 1267163197 - 2¹⁵ = 1267130429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1267163897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633581598 + 633581599.

It is an arithmetic number, because the mean of its divisors is an integer number (633581599).

Almost surely, 2^1267163197 is an apocalyptic number.

It is an amenable number.

1267163197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1267163197 is an equidigital number, since it uses as much as digits as its factorization.

1267163197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 43.

The square root of 1267163197 is about 35597.2358056072. The cubic root of 1267163197 is about 1082.1252154235.

The spelling of 1267163197 in words is "one billion, two hundred sixty-seven million, one hundred sixty-three thousand, one hundred ninety-seven".