1109137 has 4 divisors (see below), whose sum is σ = 1115136. Its totient is φ = 1103140.

The previous prime is 1109123. The next prime is 1109159. The reversal of 1109137 is 7319011.

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: 7319011 = 7 ⋅1045573.

It is a cyclic number.

It is not a de Polignac number, because 1109137 - 2¹⁹ = 584849 is a prime.

It is a super-3 number, since 3×1109137³ = 4093330717614103059, which contains 333 as substring.

It is a Duffinian number.

1109137 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1109117) 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, 2713 + ... + 3094.

It is an arithmetic number, because the mean of its divisors is an integer number (278784).

2^1109137 is an apocalyptic number.

It is an amenable number.

1109137 is a deficient number, since it is larger than the sum of its proper divisors (5999).

1109137 is an equidigital number, since it uses as much as digits as its factorization.

1109137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998.

The product of its (nonzero) digits is 189, while the sum is 22.

The square root of 1109137 is about 1053.1557339729. The cubic root of 1109137 is about 103.5130402794.

The spelling of 1109137 in words is "one million, one hundred nine thousand, one hundred thirty-seven".