36221523 has 16 divisors (see below), whose sum is σ = 53222400. Its totient is φ = 21770784.

The previous prime is 36221519. The next prime is 36221569. The reversal of 36221523 is 32512263.

It is not a de Polignac number, because 36221523 - 2² = 36221519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36221493 and 36221502.

It is not an unprimeable number, because it can be changed into a prime (36221503) 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 15 ways as a sum of consecutive naturals, for example, 9123 + ... + 12476.

It is an arithmetic number, because the mean of its divisors is an integer number (3326400).

Almost surely, 2^36221523 is an apocalyptic number.

36221523 is a deficient number, since it is larger than the sum of its proper divisors (17000877).

36221523 is a wasteful number, since it uses less digits than its factorization.

36221523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21658.

The product of its digits is 2160, while the sum is 24.

The square root of 36221523 is about 6018.4319386365. The cubic root of 36221523 is about 330.8686115807.

Adding to 36221523 its reverse (32512263), we get a palindrome (68733786).

The spelling of 36221523 in words is "thirty-six million, two hundred twenty-one thousand, five hundred twenty-three".