36131636 has 12 divisors (see below), whose sum is σ = 63276612. Its totient is φ = 18052608.

The previous prime is 36131633. The next prime is 36131663. The reversal of 36131636 is 63613163.

It can be written as a sum of positive squares in 2 ways, for example, as 30580900 + 5550736 = 5530^2 + 2356^2 .

It is a junction number, because it is equal to n+sod(n) for n = 36131599 and 36131608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36131633) 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, 5396 + ... + 10068.

It is an arithmetic number, because the mean of its divisors is an integer number (5273051).

Almost surely, 2^36131636 is an apocalyptic number.

It is an amenable number.

36131636 is a deficient number, since it is larger than the sum of its proper divisors (27144976).

36131636 is a wasteful number, since it uses less digits than its factorization.

36131636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6610 (or 6608 counting only the distinct ones).

The product of its digits is 5832, while the sum is 29.

The square root of 36131636 is about 6010.9596571596. The cubic root of 36131636 is about 330.5946913635.

Adding to 36131636 its reverse (63613163), we get a palindrome (99744799).

The spelling of 36131636 in words is "thirty-six million, one hundred thirty-one thousand, six hundred thirty-six".