1163488909 has 16 divisors (see below), whose sum is σ = 1292760000. Its totient is φ = 1038190720.

The previous prime is 1163488877. The next prime is 1163488919. The reversal of 1163488909 is 9098843611.

It is a cyclic number.

It is not a de Polignac number, because 1163488909 - 2⁵ = 1163488877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163488919) 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, 679947 + ... + 681655.

It is an arithmetic number, because the mean of its divisors is an integer number (80797500).

Almost surely, 2^1163488909 is an apocalyptic number.

It is an amenable number.

1163488909 is a deficient number, since it is larger than the sum of its proper divisors (129271091).

1163488909 is a wasteful number, since it uses less digits than its factorization.

1163488909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 1163488909 is about 34109.9532248287. The cubic root of 1163488909 is about 1051.7699276273.

The spelling of 1163488909 in words is "one billion, one hundred sixty-three million, four hundred eighty-eight thousand, nine hundred nine".