1109976813 has 24 divisors (see below), whose sum is σ = 1753071840. Its totient is φ = 671168160.

The previous prime is 1109976799. The next prime is 1109976839. The reversal of 1109976813 is 3186799011.

It is not a de Polignac number, because 1109976813 - 2¹³ = 1109968621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109976893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31203 + ... + 56511.

It is an arithmetic number, because the mean of its divisors is an integer number (73044660).

Almost surely, 2^1109976813 is an apocalyptic number.

It is an amenable number.

1109976813 is a deficient number, since it is larger than the sum of its proper divisors (643095027).

1109976813 is a wasteful number, since it uses less digits than its factorization.

1109976813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25769 (or 25766 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The square root of 1109976813 is about 33316.3145170651. The cubic root of 1109976813 is about 1035.3915958510.

The spelling of 1109976813 in words is "one billion, one hundred nine million, nine hundred seventy-six thousand, eight hundred thirteen".