1139109 has 4 divisors (see below), whose sum is σ = 1518816. Its totient is φ = 759404.

The previous prime is 1139087. The next prime is 1139123. The reversal of 1139109 is 9019311.

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.

It is a cyclic number.

It is not a de Polignac number, because 1139109 - 2⁸ = 1138853 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139309) 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, 189849 + ... + 189854.

It is an arithmetic number, because the mean of its divisors is an integer number (379704).

2^1139109 is an apocalyptic number.

It is an amenable number.

1139109 is a deficient number, since it is larger than the sum of its proper divisors (379707).

1139109 is an equidigital number, since it uses as much as digits as its factorization.

1139109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379706.

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 1139109 is about 1067.2904946639. The cubic root of 1139109 is about 104.4371698654.

The spelling of 1139109 in words is "one million, one hundred thirty-nine thousand, one hundred nine".