36138233 has 4 divisors (see below), whose sum is σ = 37114980. Its totient is φ = 35161488.

The previous prime is 36138217. The next prime is 36138239. The reversal of 36138233 is 33283163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33283163 = 373 ⋅89231.

It can be written as a sum of positive squares in 2 ways, for example, as 22202944 + 13935289 = 4712^2 + 3733^2 .

It is a cyclic number.

It is not a de Polignac number, because 36138233 - 2⁴ = 36138217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36138196 and 36138205.

It is not an unprimeable number, because it can be changed into a prime (36138239) 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, 488318 + ... + 488391.

It is an arithmetic number, because the mean of its divisors is an integer number (9278745).

Almost surely, 2^36138233 is an apocalyptic number.

It is an amenable number.

36138233 is a deficient number, since it is larger than the sum of its proper divisors (976747).

36138233 is an equidigital number, since it uses as much as digits as its factorization.

36138233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976746.

The product of its digits is 7776, while the sum is 29.

The square root of 36138233 is about 6011.5083797663. The cubic root of 36138233 is about 330.6148103940.

The spelling of 36138233 in words is "thirty-six million, one hundred thirty-eight thousand, two hundred thirty-three".