1163813573 has 16 divisors (see below), whose sum is σ = 1269979200. Its totient is φ = 1060076160.

The previous prime is 1163813569. The next prime is 1163813579. The reversal of 1163813573 is 3753183611.

It is not a de Polignac number, because 1163813573 - 2² = 1163813569 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 (1163813579) 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, 993278 + ... + 994448.

It is an arithmetic number, because the mean of its divisors is an integer number (79373700).

Almost surely, 2^1163813573 is an apocalyptic number.

1163813573 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1163813573 is a deficient number, since it is larger than the sum of its proper divisors (106165627).

1163813573 is a wasteful number, since it uses less digits than its factorization.

1163813573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132.

The product of its digits is 45360, while the sum is 38.

The square root of 1163813573 is about 34114.7119729890. The cubic root of 1163813573 is about 1051.8677483779.

The spelling of 1163813573 in words is "one billion, one hundred sixty-three million, eight hundred thirteen thousand, five hundred seventy-three".