1109633 has 4 divisors (see below), whose sum is σ = 1268160. Its totient is φ = 951108.

The previous prime is 1109629. The next prime is 1109639. The reversal of 1109633 is 3369011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3369011 = 41 ⋅82171.

It is a cyclic number.

It is not a de Polignac number, because 1109633 - 2² = 1109629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1109599 and 1109608.

It is not an unprimeable number, because it can be changed into a prime (1109639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79253 + ... + 79266.

It is an arithmetic number, because the mean of its divisors is an integer number (317040).

2^1109633 is an apocalyptic number.

It is an amenable number.

1109633 is a deficient number, since it is larger than the sum of its proper divisors (158527).

1109633 is an equidigital number, since it uses as much as digits as its factorization.

1109633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158526.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 1109633 is about 1053.3911903941. The cubic root of 1109633 is about 103.5284681350.

The spelling of 1109633 in words is "one million, one hundred nine thousand, six hundred thirty-three".