1140009 has 8 divisors (see below), whose sum is σ = 1636992. Its totient is φ = 701520.

The previous prime is 1139993. The next prime is 1140091. The reversal of 1140009 is 9000411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1140009 - 2⁴ = 1139993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1140009.

It is not an unprimeable number, because it can be changed into a prime (1140709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14577 + ... + 14654.

It is an arithmetic number, because the mean of its divisors is an integer number (204624).

2^1140009 is an apocalyptic number.

It is an amenable number.

1140009 is a deficient number, since it is larger than the sum of its proper divisors (496983).

1140009 is a wasteful number, since it uses less digits than its factorization.

1140009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29247.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1140009 is about 1067.7120398310. The cubic root of 1140009 is about 104.4646675878.

The spelling of 1140009 in words is "one million, one hundred forty thousand, nine".