13143236 has 12 divisors (see below), whose sum is σ = 23325120. Its totient is φ = 6478920.

The previous prime is 13143233. The next prime is 13143239. The reversal of 13143236 is 63234131.

It is an interprime number because it is at equal distance from previous prime (13143233) and next prime (13143239).

It is not an unprimeable number, because it can be changed into a prime (13143233) 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, 22856 + ... + 23423.

It is an arithmetic number, because the mean of its divisors is an integer number (1943760).

Almost surely, 2^13143236 is an apocalyptic number.

It is an amenable number.

13143236 is a deficient number, since it is larger than the sum of its proper divisors (10181884).

13143236 is a wasteful number, since it uses less digits than its factorization.

13143236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46354 (or 46352 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

The square root of 13143236 is about 3625.3601200432. The cubic root of 13143236 is about 235.9938952744.

Adding to 13143236 its reverse (63234131), we get a palindrome (76377367).

The spelling of 13143236 in words is "thirteen million, one hundred forty-three thousand, two hundred thirty-six".