36144225 has 60 divisors (see below), whose sum is σ = 72154236. Its totient is φ = 17781120.

The previous prime is 36144221. The next prime is 36144239. The reversal of 36144225 is 52244163.

36144225 is a `hidden beast` number, since 3 + 614 + 42 + 2 + 5 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 81 + 36144144 = 9^2 + 6012^2 .

It is not a de Polignac number, because 36144225 - 2² = 36144221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (36144221) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 25639 + ... + 27011.

Almost surely, 2^36144225 is an apocalyptic number.

It is an amenable number.

36144225 is a deficient number, since it is larger than the sum of its proper divisors (36010011).

36144225 is a wasteful number, since it uses less digits than its factorization.

36144225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408 (or 1394 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 36144225 is about 6012.0067365232. The cubic root of 36144225 is about 330.6330822195.

Adding to 36144225 its reverse (52244163), we get a palindrome (88388388).

The spelling of 36144225 in words is "thirty-six million, one hundred forty-four thousand, two hundred twenty-five".