13531134404 has 12 divisors (see below), whose sum is σ = 23688251664. Its totient is φ = 6763062504.

The previous prime is 13531134403. The next prime is 13531134443. The reversal of 13531134404 is 40443113531.

It is a happy number.

It is a super-2 number, since 2×13531134404² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13531134403) 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, 613994 + ... + 635649.

It is an arithmetic number, because the mean of its divisors is an integer number (1974020972).

Almost surely, 2^13531134404 is an apocalyptic number.

It is an amenable number.

13531134404 is a deficient number, since it is larger than the sum of its proper divisors (10157117260).

13531134404 is a wasteful number, since it uses less digits than its factorization.

13531134404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252354 (or 1252352 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 13531134404 its reverse (40443113531), we get a palindrome (53974247935).

The spelling of 13531134404 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-four thousand, four hundred four".