1198427267 has 2 divisors, whose sum is σ = 1198427268. Its totient is φ = 1198427266.

The previous prime is 1198427221. The next prime is 1198427273. The reversal of 1198427267 is 7627248911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1198427267 - 2²⁰ = 1197378691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1198427297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 599213633 + 599213634.

It is an arithmetic number, because the mean of its divisors is an integer number (599213634).

Almost surely, 2^1198427267 is an apocalyptic number.

1198427267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1198427267 is an equidigital number, since it uses as much as digits as its factorization.

1198427267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 47.

The square root of 1198427267 is about 34618.3082631142. The cubic root of 1198427267 is about 1062.1941222761.

The spelling of 1198427267 in words is "one billion, one hundred ninety-eight million, four hundred twenty-seven thousand, two hundred sixty-seven".