13213143 has 12 divisors (see below), whose sum is σ = 19144320. Its totient is φ = 8781696.

The previous prime is 13213139. The next prime is 13213153. The reversal of 13213143 is 34131231.

It is not a de Polignac number, because 13213143 - 2² = 13213139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1098 + ... + 5256.

It is an arithmetic number, because the mean of its divisors is an integer number (1595360).

Almost surely, 2^13213143 is an apocalyptic number.

13213143 is a deficient number, since it is larger than the sum of its proper divisors (5931177).

13213143 is a wasteful number, since it uses less digits than its factorization.

13213143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4518 (or 4515 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 13213143 is about 3634.9887207528. The cubic root of 13213143 is about 236.4115616151.

Adding to 13213143 its reverse (34131231), we get a palindrome (47344374).

The spelling of 13213143 in words is "thirteen million, two hundred thirteen thousand, one hundred forty-three".