1109312 has 14 divisors (see below), whose sum is σ = 2201418. Its totient is φ = 554624.

The previous prime is 1109309. The next prime is 1109327. The reversal of 1109312 is 2139011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 678976 + 430336 = 824^2 + 656^2 .

It is a super-2 number, since 2×1109312² = 2461146226688, which contains 22 as substring.

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, 8603 + ... + 8730.

2^1109312 is an apocalyptic number.

It is an amenable number.

1109312 is a deficient number, since it is larger than the sum of its proper divisors (1092106).

1109312 is an equidigital number, since it uses as much as digits as its factorization.

1109312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17345 (or 17335 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 1109312 is about 1053.2388143247. The cubic root of 1109312 is about 103.5184841002.

The spelling of 1109312 in words is "one million, one hundred nine thousand, three hundred twelve".