1163813541 has 16 divisors (see below), whose sum is σ = 1693984320. Its totient is φ = 704856320.

The previous prime is 1163813531. The next prime is 1163813569. The reversal of 1163813541 is 1453183611.

It is a cyclic number.

It is not a de Polignac number, because 1163813541 - 2⁹ = 1163813029 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163813531) 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, 39895 + ... + 62603.

It is an arithmetic number, because the mean of its divisors is an integer number (105874020).

Almost surely, 2^1163813541 is an apocalyptic number.

1163813541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1163813541 is a deficient number, since it is larger than the sum of its proper divisors (530170779).

1163813541 is a wasteful number, since it uses less digits than its factorization.

1163813541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24276.

The product of its digits is 8640, while the sum is 33.

The square root of 1163813541 is about 34114.7115039831. The cubic root of 1163813541 is about 1051.8677387372.

The spelling of 1163813541 in words is "one billion, one hundred sixty-three million, eight hundred thirteen thousand, five hundred forty-one".