1109161408 has 14 divisors (see below), whose sum is σ = 2200992296. Its totient is φ = 554580672.

The previous prime is 1109161399. The next prime is 1109161421. The reversal of 1109161408 is 8041619011.

It is a self number, because there is not a number n which added to its sum of digits gives 1109161408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8665260 + ... + 8665387.

Almost surely, 2^1109161408 is an apocalyptic number.

It is an amenable number.

1109161408 is a deficient number, since it is larger than the sum of its proper divisors (1091830888).

1109161408 is an equidigital number, since it uses as much as digits as its factorization.

1109161408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17330659 (or 17330649 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 1109161408 is about 33304.0749458681. The cubic root of 1109161408 is about 1035.1379958674.

The spelling of 1109161408 in words is "one billion, one hundred nine million, one hundred sixty-one thousand, four hundred eight".