36163681 has 8 divisors (see below), whose sum is σ = 37495584. Its totient is φ = 34853280.

The previous prime is 36163663. The next prime is 36163691. The reversal of 36163681 is 18636163.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36163681 - 2²⁵ = 2609249 is a prime.

It is a super-2 number, since 2×36163681² = 2615623646939522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36163661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1911 + ... + 8716.

It is an arithmetic number, because the mean of its divisors is an integer number (4686948).

Almost surely, 2^36163681 is an apocalyptic number.

It is an amenable number.

36163681 is a deficient number, since it is larger than the sum of its proper divisors (1331903).

36163681 is a wasteful number, since it uses less digits than its factorization.

36163681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10751.

The product of its digits is 15552, while the sum is 34.

The square root of 36163681 is about 6013.6246141574. The cubic root of 36163681 is about 330.6923968436.

The spelling of 36163681 in words is "thirty-six million, one hundred sixty-three thousand, six hundred eighty-one".