1162536813 has 8 divisors (see below), whose sum is σ = 1722276800. Its totient is φ = 775024524.

The previous prime is 1162536811. The next prime is 1162536829. The reversal of 1162536813 is 3186352611.

1162536813 is a `hidden beast` number, since 11 + 625 + 3 + 6 + 8 + 13 = 666.

It is not a de Polignac number, because 1162536813 - 2¹ = 1162536811 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 (1162536811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21528433 + ... + 21528486.

It is an arithmetic number, because the mean of its divisors is an integer number (215284600).

Almost surely, 2^1162536813 is an apocalyptic number.

It is an amenable number.

1162536813 is a deficient number, since it is larger than the sum of its proper divisors (559739987).

1162536813 is an equidigital number, since it uses as much as digits as its factorization.

1162536813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43056928 (or 43056922 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 1162536813 is about 34095.9940902153. The cubic root of 1162536813 is about 1051.4829576339.

The spelling of 1162536813 in words is "one billion, one hundred sixty-two million, five hundred thirty-six thousand, eight hundred thirteen".