1116609469 has 2 divisors, whose sum is σ = 1116609470. Its totient is φ = 1116609468.

The previous prime is 1116609467. The next prime is 1116609479. The reversal of 1116609469 is 9649066111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 693690244 + 422919225 = 26338^2 + 20565^2 .

It is an emirp because it is prime and its reverse (9649066111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1116609469 - 2¹ = 1116609467 is a prime.

It is a super-2 number, since 2×1116609469² = 2493633412520923922, which contains 22 as substring.

Together with 1116609467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1116609467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558304734 + 558304735.

It is an arithmetic number, because the mean of its divisors is an integer number (558304735).

Almost surely, 2^1116609469 is an apocalyptic number.

It is an amenable number.

1116609469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1116609469 is an equidigital number, since it uses as much as digits as its factorization.

1116609469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 1116609469 is about 33415.7069205486. The cubic root of 1116609469 is about 1037.4498258796.

The spelling of 1116609469 in words is "one billion, one hundred sixteen million, six hundred nine thousand, four hundred sixty-nine".