1115760409 has 3 divisors (see below), whose sum is σ = 1115793813. Its totient is φ = 1115727006.

The previous prime is 1115760407. The next prime is 1115760467. The reversal of 1115760409 is 9040675111.

The square root of 1115760409 is 33403.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1115760409 - 2¹ = 1115760407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1115760403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 16702 + ... + 50104.

It is an arithmetic number, because the mean of its divisors is an integer number (371931271).

Almost surely, 2^1115760409 is an apocalyptic number.

1115760409 is the 33403-rd square number.

1115760409 is the 16702-nd centered octagonal number.

It is an amenable number.

1115760409 is a deficient number, since it is larger than the sum of its proper divisors (33404).

1115760409 is an frugal number, since it uses more digits than its factorization.

1115760409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66806 (or 33403 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The cubic root of 1115760409 is about 1037.1868033000.

The spelling of 1115760409 in words is "one billion, one hundred fifteen million, seven hundred sixty thousand, four hundred nine".