36121569 has 16 divisors (see below), whose sum is σ = 54825984. Its totient is φ = 20939600.

The previous prime is 36121543. The next prime is 36121609. The reversal of 36121569 is 96512163.

It is a happy number.

36121569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 36121569 - 2⁷ = 36121441 is a prime.

It is a super-2 number, since 2×36121569² = 2609535494043522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (36121529) 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 15 ways as a sum of consecutive naturals, for example, 23037 + ... + 24554.

It is an arithmetic number, because the mean of its divisors is an integer number (3426624).

Almost surely, 2^36121569 is an apocalyptic number.

It is an amenable number.

36121569 is a deficient number, since it is larger than the sum of its proper divisors (18704415).

36121569 is a wasteful number, since it uses less digits than its factorization.

36121569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47628.

The product of its digits is 9720, while the sum is 33.

The square root of 36121569 is about 6010.1222117358. The cubic root of 36121569 is about 330.5639850696.

The spelling of 36121569 in words is "thirty-six million, one hundred twenty-one thousand, five hundred sixty-nine".