1169161249 has 9 divisors (see below), whose sum is σ = 1209189009. Its totient is φ = 1130420580.

The previous prime is 1169161223. The next prime is 1169161267. The reversal of 1169161249 is 9421619611.

The square root of 1169161249 is 34193.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1169161249 - 2¹⁵ = 1169128481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1169167249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1059432 + ... + 1060534.

Almost surely, 2^1169161249 is an apocalyptic number.

1169161249 is the 34193-rd square number.

1169161249 is the 17097-th centered octagonal number.

It is an amenable number.

1169161249 is a deficient number, since it is larger than the sum of its proper divisors (40027760).

1169161249 is an frugal number, since it uses more digits than its factorization.

1169161249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 1134 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The cubic root of 1169161249 is about 1053.4763835143.

The spelling of 1169161249 in words is "one billion, one hundred sixty-nine million, one hundred sixty-one thousand, two hundred forty-nine".