1109113472 has 16 divisors (see below), whose sum is σ = 2209562250. Its totient is φ = 554556672.

The previous prime is 1109113471. The next prime is 1109113487. The reversal of 1109113472 is 2743119011.

It can be written as a sum of positive squares in only one way, i.e., 903363136 + 205750336 = 30056^2 + 14344^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (1109113471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4332347 + ... + 4332602.

Almost surely, 2^1109113472 is an apocalyptic number.

It is an amenable number.

1109113472 is a deficient number, since it is larger than the sum of its proper divisors (1100448778).

1109113472 is an frugal number, since it uses more digits than its factorization.

1109113472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8664963 (or 8664951 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1109113472 is about 33303.3552663992. The cubic root of 1109113472 is about 1035.1230833730.

The spelling of 1109113472 in words is "one billion, one hundred nine million, one hundred thirteen thousand, four hundred seventy-two".