36021331 has 4 divisors (see below), whose sum is σ = 36036000. Its totient is φ = 36006664.

The previous prime is 36021311. The next prime is 36021343. The reversal of 36021331 is 13312063.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13312063 = 53 ⋅251171.

It is a cyclic number.

It is not a de Polignac number, because 36021331 - 2⁵ = 36021299 is a prime.

It is a super-2 number, since 2×36021331² = 2595072574023122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36021299 and 36021308.

It is not an unprimeable number, because it can be changed into a prime (36021301) 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 3 ways as a sum of consecutive naturals, for example, 2656 + ... + 8893.

It is an arithmetic number, because the mean of its divisors is an integer number (9009000).

Almost surely, 2^36021331 is an apocalyptic number.

36021331 is a deficient number, since it is larger than the sum of its proper divisors (14669).

36021331 is a wasteful number, since it uses less digits than its factorization.

36021331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14668.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 36021331 is about 6001.7773200944. Note that the first 3 decimals coincide. The cubic root of 36021331 is about 330.2579281334.

Adding to 36021331 its reverse (13312063), we get a palindrome (49333394).

The spelling of 36021331 in words is "thirty-six million, twenty-one thousand, three hundred thirty-one".