36113813 has 16 divisors (see below), whose sum is σ = 39909120. Its totient is φ = 32550336.

The previous prime is 36113809. The next prime is 36113821. The reversal of 36113813 is 31831163.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 36113813 - 2² = 36113809 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36113873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32495 + ... + 33587.

It is an arithmetic number, because the mean of its divisors is an integer number (2494320).

Almost surely, 2^36113813 is an apocalyptic number.

It is an amenable number.

36113813 is a deficient number, since it is larger than the sum of its proper divisors (3795307).

36113813 is a wasteful number, since it uses less digits than its factorization.

36113813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196.

The product of its digits is 1296, while the sum is 26.

The square root of 36113813 is about 6009.4769323128. The cubic root of 36113813 is about 330.5403238808.

Adding to 36113813 its reverse (31831163), we get a palindrome (67944976).

The spelling of 36113813 in words is "thirty-six million, one hundred thirteen thousand, eight hundred thirteen".