36321121 has 4 divisors (see below), whose sum is σ = 37207044. Its totient is φ = 35435200.

The previous prime is 36321101. The next prime is 36321151. The reversal of 36321121 is 12112363.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21390625 + 14930496 = 4625^2 + 3864^2 .

It is a cyclic number.

It is not a de Polignac number, because 36321121 - 2¹⁹ = 35796833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36321101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442900 + ... + 442981.

It is an arithmetic number, because the mean of its divisors is an integer number (9301761).

Almost surely, 2^36321121 is an apocalyptic number.

It is an amenable number.

36321121 is a deficient number, since it is larger than the sum of its proper divisors (885923).

36321121 is an equidigital number, since it uses as much as digits as its factorization.

36321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885922.

The product of its digits is 216, while the sum is 19.

The square root of 36321121 is about 6026.7006728392. The cubic root of 36321121 is about 331.1715962061.

Adding to 36321121 its reverse (12112363), we get a palindrome (48433484).

It can be divided in two parts, 3632 and 1121, that added together give a triangular number (4753 = T₉₇).

The spelling of 36321121 in words is "thirty-six million, three hundred twenty-one thousand, one hundred twenty-one".