1169441491 has 2 divisors, whose sum is σ = 1169441492. Its totient is φ = 1169441490.

The previous prime is 1169441437. The next prime is 1169441557. The reversal of 1169441491 is 1941449611.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1169441491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1169441191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 584720745 + 584720746.

It is an arithmetic number, because the mean of its divisors is an integer number (584720746).

Almost surely, 2^1169441491 is an apocalyptic number.

1169441491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1169441491 is an equidigital number, since it uses as much as digits as its factorization.

1169441491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 40.

The square root of 1169441491 is about 34197.0976984890. The cubic root of 1169441491 is about 1053.5605477657.

The spelling of 1169441491 in words is "one billion, one hundred sixty-nine million, four hundred forty-one thousand, four hundred ninety-one".