36539144 has 8 divisors (see below), whose sum is σ = 68510910. Its totient is φ = 18269568.

The previous prime is 36539143. The next prime is 36539149. The reversal of 36539144 is 44193563.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 14730244 = 4670^2 + 3838^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (36539141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2283689 + ... + 2283704.

Almost surely, 2^36539144 is an apocalyptic number.

It is an amenable number.

36539144 is a deficient number, since it is larger than the sum of its proper divisors (31971766).

36539144 is a wasteful number, since it uses less digits than its factorization.

36539144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567399 (or 4567395 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 36539144 is about 6044.7616991905. The cubic root of 36539144 is about 331.8329105502.

The spelling of 36539144 in words is "thirty-six million, five hundred thirty-nine thousand, one hundred forty-four".