1197229169 has 2 divisors, whose sum is σ = 1197229170. Its totient is φ = 1197229168.

The previous prime is 1197229147. The next prime is 1197229171. The reversal of 1197229169 is 9619227911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1197160000 + 69169 = 34600^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197229169 - 2²⁰ = 1196180593 is a prime.

It is a super-2 number, since 2×1197229169² = 2866715366208861122, which contains 22 as substring.

Together with 1197229171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1197229469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598614584 + 598614585.

It is an arithmetic number, because the mean of its divisors is an integer number (598614585).

Almost surely, 2^1197229169 is an apocalyptic number.

It is an amenable number.

1197229169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197229169 is an equidigital number, since it uses as much as digits as its factorization.

1197229169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 47.

The square root of 1197229169 is about 34600.9995375856. Note that the first 3 decimals coincide. The cubic root of 1197229169 is about 1061.8400368254.

The spelling of 1197229169 in words is "one billion, one hundred ninety-seven million, two hundred twenty-nine thousand, one hundred sixty-nine".