13533421147 has 2 divisors, whose sum is σ = 13533421148. Its totient is φ = 13533421146.

The previous prime is 13533421037. The next prime is 13533421189. The reversal of 13533421147 is 74112433531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13533421147 - 2⁷ = 13533421019 is a prime.

It is not a weakly prime, because it can be changed into another prime (13533421247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6766710573 + 6766710574.

It is an arithmetic number, because the mean of its divisors is an integer number (6766710574).

Almost surely, 2^13533421147 is an apocalyptic number.

13533421147 is a deficient number, since it is larger than the sum of its proper divisors (1).

13533421147 is an equidigital number, since it uses as much as digits as its factorization.

13533421147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

Adding to 13533421147 its reverse (74112433531), we get a palindrome (87645854678).

It can be divided in two parts, 1353 and 3421147, that added together give a square (3422500 = 1850²).

The spelling of 13533421147 in words is "thirteen billion, five hundred thirty-three million, four hundred twenty-one thousand, one hundred forty-seven".