1109149860 has 96 divisors (see below), whose sum is σ = 3822319872. Its totient is φ = 234017280.

The previous prime is 1109149849. The next prime is 1109149889. The reversal of 1109149860 is 689419011.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96111 + ... + 107030.

It is an arithmetic number, because the mean of its divisors is an integer number (39815832).

Almost surely, 2^1109149860 is an apocalyptic number.

1109149860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1109149860 is an abundant number, since it is smaller than the sum of its proper divisors (2713170012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1109149860 is a wasteful number, since it uses less digits than its factorization.

1109149860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203173 (or 203171 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 1109149860 is about 33303.9015732391. The cubic root of 1109149860 is about 1035.1344034191.

The spelling of 1109149860 in words is "one billion, one hundred nine million, one hundred forty-nine thousand, eight hundred sixty".