36638161 has 8 divisors (see below), whose sum is σ = 42304640. Its totient is φ = 31079808.

The previous prime is 36638141. The next prime is 36638171. The reversal of 36638161 is 16183663.

It is a happy number.

36638161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 36638161 - 2¹¹ = 36636113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36638101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26301 + ... + 27658.

It is an arithmetic number, because the mean of its divisors is an integer number (5288080).

Almost surely, 2^36638161 is an apocalyptic number.

It is an amenable number.

36638161 is a deficient number, since it is larger than the sum of its proper divisors (5666479).

36638161 is an equidigital number, since it uses as much as digits as its factorization.

36638161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54063.

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

The square root of 36638161 is about 6052.9464725867. The cubic root of 36638161 is about 332.1323835776.

The spelling of 36638161 in words is "thirty-six million, six hundred thirty-eight thousand, one hundred sixty-one".