1109385743 has 6 divisors (see below), whose sum is σ = 1115581752. Its totient is φ = 1103223960.

The previous prime is 1109385731. The next prime is 1109385757. The reversal of 1109385743 is 3475839011.

It is not a de Polignac number, because 1109385743 - 2⁴ = 1109385727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1109385743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109385793) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15830 + ... + 49692.

It is an arithmetic number, because the mean of its divisors is an integer number (185930292).

Almost surely, 2^1109385743 is an apocalyptic number.

1109385743 is a deficient number, since it is larger than the sum of its proper divisors (6196009).

1109385743 is an frugal number, since it uses more digits than its factorization.

1109385743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34225 (or 34044 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1109385743 is about 33307.4427568374. The cubic root of 1109385743 is about 1035.2077789265.

The spelling of 1109385743 in words is "one billion, one hundred nine million, three hundred eighty-five thousand, seven hundred forty-three".