13146235636 has 12 divisors (see below), whose sum is σ = 23028233760. Its totient is φ = 6566740280.

The previous prime is 13146235591. The next prime is 13146235637. The reversal of 13146235636 is 63653264131.

It is a super-2 number, since 2×13146235636² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13146235637) 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, 1589746 + ... + 1597993.

It is an arithmetic number, because the mean of its divisors is an integer number (1919019480).

Almost surely, 2^13146235636 is an apocalyptic number.

It is an amenable number.

13146235636 is a deficient number, since it is larger than the sum of its proper divisors (9881998124).

13146235636 is a wasteful number, since it uses less digits than its factorization.

13146235636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188774 (or 3188772 counting only the distinct ones).

The product of its digits is 233280, while the sum is 40.

Adding to 13146235636 its reverse (63653264131), we get a palindrome (76799499767).

The spelling of 13146235636 in words is "thirteen billion, one hundred forty-six million, two hundred thirty-five thousand, six hundred thirty-six".