1105725309 has 16 divisors (see below), whose sum is σ = 1588320384. Its totient is φ = 680184000.

The previous prime is 1105725301. The next prime is 1105725319. The reversal of 1105725309 is 9035275011.

It is not a de Polignac number, because 1105725309 - 2³ = 1105725301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1105725309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105725301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161659 + ... + 168359.

It is an arithmetic number, because the mean of its divisors is an integer number (99270024).

Almost surely, 2^1105725309 is an apocalyptic number.

It is an amenable number.

1105725309 is a deficient number, since it is larger than the sum of its proper divisors (482595075).

1105725309 is a wasteful number, since it uses less digits than its factorization.

1105725309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10948.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 1105725309 is about 33252.4481655111. The cubic root of 1105725309 is about 1034.0679634751.

The spelling of 1105725309 in words is "one billion, one hundred five million, seven hundred twenty-five thousand, three hundred nine".