13533001 has 2 divisors, whose sum is σ = 13533002. Its totient is φ = 13533000.

The previous prime is 13532999. The next prime is 13533011. The reversal of 13533001 is 10033531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9734400 + 3798601 = 3120^2 + 1949^2 .

It is a cyclic number.

It is not a de Polignac number, because 13533001 - 2¹ = 13532999 is a prime.

Together with 13532999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13533011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6766500 + 6766501.

It is an arithmetic number, because the mean of its divisors is an integer number (6766501).

Almost surely, 2^13533001 is an apocalyptic number.

It is an amenable number.

13533001 is a deficient number, since it is larger than the sum of its proper divisors (1).

13533001 is an equidigital number, since it uses as much as digits as its factorization.

13533001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 13533001 is about 3678.7227403000. The cubic root of 13533001 is about 238.3040214765.

Adding to 13533001 its reverse (10033531), we get a palindrome (23566532).

The spelling of 13533001 in words is "thirteen million, five hundred thirty-three thousand, one".