1197148969 has 2 divisors, whose sum is σ = 1197148970. Its totient is φ = 1197148968.

The previous prime is 1197148961. The next prime is 1197148991. The reversal of 1197148969 is 9698417911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 798627600 + 398521369 = 28260^2 + 19963^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197148969 - 2³ = 1197148961 is a prime.

It is a super-2 number, since 2×1197148969² = 2866331307955525922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1197148961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598574484 + 598574485.

It is an arithmetic number, because the mean of its divisors is an integer number (598574485).

Almost surely, 2^1197148969 is an apocalyptic number.

It is an amenable number.

1197148969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197148969 is an equidigital number, since it uses as much as digits as its factorization.

1197148969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 55.

The square root of 1197148969 is about 34599.8405921183. The cubic root of 1197148969 is about 1061.8163261122.

The spelling of 1197148969 in words is "one billion, one hundred ninety-seven million, one hundred forty-eight thousand, nine hundred sixty-nine".