1163009 has 4 divisors (see below), whose sum is σ = 1224240. Its totient is φ = 1101780.

The previous prime is 1163003. The next prime is 1163011. The reversal of 1163009 is 9003611.

1163009 = T₈₂ + T₈₃ + ... + T₁₉₅.

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: 9003611 = 367 ⋅24533.

It is a cyclic number.

It is not a de Polignac number, because 1163009 - 2⁸ = 1162753 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1163003) 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, 30587 + ... + 30624.

It is an arithmetic number, because the mean of its divisors is an integer number (306060).

2^1163009 is an apocalyptic number.

1163009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1163009 is a deficient number, since it is larger than the sum of its proper divisors (61231).

1163009 is an equidigital number, since it uses as much as digits as its factorization.

1163009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61230.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1163009 is about 1078.4289499082. The cubic root of 1163009 is about 105.1625298468.

It can be divided in two parts, 116 and 3009, that added together give a 5-th power (3125 = 5⁵).

The spelling of 1163009 in words is "one million, one hundred sixty-three thousand, nine".