13533421153 has 4 divisors (see below), whose sum is σ = 15466767040. Its totient is φ = 11600075268.

The previous prime is 13533421147. The next prime is 13533421189. The reversal of 13533421153 is 35112433531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13533421153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13533421193) 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, 966672933 + ... + 966672946.

It is an arithmetic number, because the mean of its divisors is an integer number (3866691760).

Almost surely, 2^13533421153 is an apocalyptic number.

It is an amenable number.

13533421153 is a deficient number, since it is larger than the sum of its proper divisors (1933345887).

13533421153 is an equidigital number, since it uses as much as digits as its factorization.

13533421153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933345886.

The product of its digits is 16200, while the sum is 31.

Adding to 13533421153 its reverse (35112433531), we get a palindrome (48645854684).

The spelling of 13533421153 in words is "thirteen billion, five hundred thirty-three million, four hundred twenty-one thousand, one hundred fifty-three".