1163409 has 16 divisors (see below), whose sum is σ = 1744512. Its totient is φ = 684288.

The previous prime is 1163353. The next prime is 1163417. The reversal of 1163409 is 9043611.

It is not a de Polignac number, because 1163409 - 2⁹ = 1162897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249 + ... + 1545.

It is an arithmetic number, because the mean of its divisors is an integer number (109032).

2^1163409 is an apocalyptic number.

It is an amenable number.

1163409 is a deficient number, since it is larger than the sum of its proper divisors (581103).

1163409 is a wasteful number, since it uses less digits than its factorization.

1163409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1163409 is about 1078.6143889268. The cubic root of 1163409 is about 105.1745848381.

The spelling of 1163409 in words is "one million, one hundred sixty-three thousand, four hundred nine".