36152221 has 4 divisors (see below), whose sum is σ = 41316832. Its totient is φ = 30987612.

The previous prime is 36152189. The next prime is 36152267. The reversal of 36152221 is 12225163.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36152221 - 2⁵ = 36152189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36152192 and 36152201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36152521) 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, 2582295 + ... + 2582308.

It is an arithmetic number, because the mean of its divisors is an integer number (10329208).

Almost surely, 2^36152221 is an apocalyptic number.

It is an amenable number.

36152221 is a deficient number, since it is larger than the sum of its proper divisors (5164611).

36152221 is an equidigital number, since it uses as much as digits as its factorization.

36152221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5164610.

The product of its digits is 720, while the sum is 22.

The square root of 36152221 is about 6012.6717023300. The cubic root of 36152221 is about 330.6574618375.

Adding to 36152221 its reverse (12225163), we get a palindrome (48377384).

The spelling of 36152221 in words is "thirty-six million, one hundred fifty-two thousand, two hundred twenty-one".