13143998 has 8 divisors (see below), whose sum is σ = 22532592. Its totient is φ = 5633136.

The previous prime is 13143997. The next prime is 13144007. The reversal of 13143998 is 89934131.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13143997) 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, 469415 + ... + 469442.

It is an arithmetic number, because the mean of its divisors is an integer number (2816574).

Almost surely, 2^13143998 is an apocalyptic number.

13143998 is a deficient number, since it is larger than the sum of its proper divisors (9388594).

13143998 is an equidigital number, since it uses as much as digits as its factorization.

13143998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938866.

The product of its digits is 23328, while the sum is 38.

The square root of 13143998 is about 3625.4652115280. The cubic root of 13143998 is about 235.9984558934.

It can be divided in two parts, 13143 and 998, that added together give a palindrome (14141).

The spelling of 13143998 in words is "thirteen million, one hundred forty-three thousand, nine hundred ninety-eight".