36221279 has 4 divisors (see below), whose sum is σ = 36302400. Its totient is φ = 36140160.

The previous prime is 36221267. The next prime is 36221281. The reversal of 36221279 is 97212263.

It is a happy number.

36221279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97212263 = 29 ⋅3352147.

It is a cyclic number.

It is not a de Polignac number, because 36221279 - 2²⁰ = 35172703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36221209) 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 3 ways as a sum of consecutive naturals, for example, 39887 + ... + 40784.

It is an arithmetic number, because the mean of its divisors is an integer number (9075600).

Almost surely, 2^36221279 is an apocalyptic number.

36221279 is a deficient number, since it is larger than the sum of its proper divisors (81121).

36221279 is an equidigital number, since it uses as much as digits as its factorization.

36221279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81120.

The product of its digits is 9072, while the sum is 32.

The square root of 36221279 is about 6018.4116675415. The cubic root of 36221279 is about 330.8678686328.

The spelling of 36221279 in words is "thirty-six million, two hundred twenty-one thousand, two hundred seventy-nine".