1164009 has 16 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 604560.

The previous prime is 1164001. The next prime is 1164029. The reversal of 1164009 is 9004611.

It is not a de Polignac number, because 1164009 - 2³ = 1164001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1164001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2289 + ... + 2750.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2^1164009 is an apocalyptic number.

It is an amenable number.

1164009 is a deficient number, since it is larger than the sum of its proper divisors (771351).

1164009 is a wasteful number, since it uses less digits than its factorization.

1164009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1164009 is about 1078.8924876928. The cubic root of 1164009 is about 105.1926621453.

The spelling of 1164009 in words is "one million, one hundred sixty-four thousand, nine".