1140109 has 4 divisors (see below), whose sum is σ = 1147104. Its totient is φ = 1133116.

The previous prime is 1140103. The next prime is 1140121. The reversal of 1140109 is 9010411.

It is a happy number.

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: 9010411 = 23 ⋅391757.

It is a cyclic number.

It is not a de Polignac number, because 1140109 - 2³ = 1140101 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140092 and 1140101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140101) 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, 3247 + ... + 3580.

It is an arithmetic number, because the mean of its divisors is an integer number (286776).

2^1140109 is an apocalyptic number.

It is an amenable number.

1140109 is a deficient number, since it is larger than the sum of its proper divisors (6995).

1140109 is an equidigital number, since it uses as much as digits as its factorization.

1140109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6994.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1140109 is about 1067.7588679098. The cubic root of 1140109 is about 104.4677219968.

The spelling of 1140109 in words is "one million, one hundred forty thousand, one hundred nine".