36365121 has 24 divisors (see below), whose sum is σ = 57424640. Its totient is φ = 22039776.

The previous prime is 36365111. The next prime is 36365123. The reversal of 36365121 is 12156363.

36365121 is a `hidden beast` number, since 3 + 6 + 3 + 651 + 2 + 1 = 666.

It is not a de Polignac number, because 36365121 - 2⁹ = 36364609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36365123) 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 23 ways as a sum of consecutive naturals, for example, 5520 + ... + 10158.

Almost surely, 2^36365121 is an apocalyptic number.

It is an amenable number.

36365121 is a deficient number, since it is larger than the sum of its proper divisors (21059519).

36365121 is a wasteful number, since it uses less digits than its factorization.

36365121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725 (or 4722 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 36365121 is about 6030.3499898430. The cubic root of 36365121 is about 331.3052711379.

The spelling of 36365121 in words is "thirty-six million, three hundred sixty-five thousand, one hundred twenty-one".