36138823 has 8 divisors (see below), whose sum is σ = 42144800. Its totient is φ = 30975840.

The previous prime is 36138803. The next prime is 36138829. The reversal of 36138823 is 32883163.

It is not a de Polignac number, because 36138823 - 2²¹ = 34041671 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 (36138829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52338 + ... + 53023.

It is an arithmetic number, because the mean of its divisors is an integer number (5268100).

Almost surely, 2^36138823 is an apocalyptic number.

36138823 is a deficient number, since it is larger than the sum of its proper divisors (6005977).

36138823 is an equidigital number, since it uses as much as digits as its factorization.

36138823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105382 (or 105368 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 36138823 is about 6011.5574521084. The cubic root of 36138823 is about 330.6166096119.

The spelling of 36138823 in words is "thirty-six million, one hundred thirty-eight thousand, eight hundred twenty-three".