36185561 has 8 divisors (see below), whose sum is σ = 36834240. Its totient is φ = 35540208.

The previous prime is 36185549. The next prime is 36185603. The reversal of 36185561 is 16558163.

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 36185561 - 2⁶ = 36185497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36185521) 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, 32075 + ... + 33183.

It is an arithmetic number, because the mean of its divisors is an integer number (4604280).

Almost surely, 2^36185561 is an apocalyptic number.

It is an amenable number.

36185561 is a deficient number, since it is larger than the sum of its proper divisors (648679).

36185561 is a wasteful number, since it uses less digits than its factorization.

36185561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663.

The product of its digits is 21600, while the sum is 35.

The square root of 36185561 is about 6015.4435414190. The cubic root of 36185561 is about 330.7590759970.

The spelling of 36185561 in words is "thirty-six million, one hundred eighty-five thousand, five hundred sixty-one".