36138111 has 4 divisors (see below), whose sum is σ = 48184152. Its totient is φ = 24092072.

The previous prime is 36138101. The next prime is 36138119. The reversal of 36138111 is 11183163.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11183163 = 3 ⋅3727721.

It is a cyclic number.

It is not a de Polignac number, because 36138111 - 2¹⁵ = 36105343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36138119) 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, 6023016 + ... + 6023021.

It is an arithmetic number, because the mean of its divisors is an integer number (12046038).

Almost surely, 2^36138111 is an apocalyptic number.

36138111 is a deficient number, since it is larger than the sum of its proper divisors (12046041).

36138111 is a wasteful number, since it uses less digits than its factorization.

36138111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12046040.

The product of its digits is 432, while the sum is 24.

The square root of 36138111 is about 6011.4982325540. The cubic root of 36138111 is about 330.6144383498.

The spelling of 36138111 in words is "thirty-six million, one hundred thirty-eight thousand, one hundred eleven".