36681163 has 4 divisors (see below), whose sum is σ = 36715120. Its totient is φ = 36647208.

The previous prime is 36681149. The next prime is 36681173. The reversal of 36681163 is 36118663.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36681163 - 2⁵ = 36681131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36681133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15303 + ... + 17536.

It is an arithmetic number, because the mean of its divisors is an integer number (9178780).

Almost surely, 2^36681163 is an apocalyptic number.

36681163 is a deficient number, since it is larger than the sum of its proper divisors (33957).

36681163 is a wasteful number, since it uses less digits than its factorization.

36681163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33956.

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

The square root of 36681163 is about 6056.4975852385. The cubic root of 36681163 is about 332.2622734001.

Subtracting from 36681163 its reverse (36118663), we obtain a square (562500 = 750²).

The spelling of 36681163 in words is "thirty-six million, six hundred eighty-one thousand, one hundred sixty-three".