1169117959 has 4 divisors (see below), whose sum is σ = 1170109080. Its totient is φ = 1168126840.

The previous prime is 1169117947. The next prime is 1169117969. The reversal of 1169117959 is 9597119611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1169117959 - 2⁹ = 1169117447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1169117909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 493789 + ... + 496150.

It is an arithmetic number, because the mean of its divisors is an integer number (292527270).

Almost surely, 2^1169117959 is an apocalyptic number.

1169117959 is a deficient number, since it is larger than the sum of its proper divisors (991121).

1169117959 is an equidigital number, since it uses as much as digits as its factorization.

1169117959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991120.

The product of its digits is 153090, while the sum is 49.

The square root of 1169117959 is about 34192.3669698370. The cubic root of 1169117959 is about 1053.4633811574.

The spelling of 1169117959 in words is "one billion, one hundred sixty-nine million, one hundred seventeen thousand, nine hundred fifty-nine".