13143533 has 8 divisors (see below), whose sum is σ = 14987448. Its totient is φ = 11418624.

The previous prime is 13143491. The next prime is 13143539. The reversal of 13143533 is 33534131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2365444 + 10778089 = 1538^2 + 3283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13143533 - 2⁶ = 13143469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13143499 and 13143508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29516 + ... + 29957.

It is an arithmetic number, because the mean of its divisors is an integer number (1873431).

Almost surely, 2^13143533 is an apocalyptic number.

13143533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13143533 is a deficient number, since it is larger than the sum of its proper divisors (1843915).

13143533 is a wasteful number, since it uses less digits than its factorization.

13143533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59503.

The product of its digits is 1620, while the sum is 23.

The square root of 13143533 is about 3625.4010812598. The cubic root of 13143533 is about 235.9956728595.

Adding to 13143533 its reverse (33534131), we get a palindrome (46677664).

The spelling of 13143533 in words is "thirteen million, one hundred forty-three thousand, five hundred thirty-three".