13143968 has 12 divisors (see below), whose sum is σ = 25877250. Its totient is φ = 6571968.

The previous prime is 13143967. The next prime is 13143997. The reversal of 13143968 is 86934131.

It can be written as a sum of positive squares in only one way, i.e., 11916304 + 1227664 = 3452^2 + 1108^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13143967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205343 + ... + 205406.

Almost surely, 2^13143968 is an apocalyptic number.

It is an amenable number.

13143968 is a deficient number, since it is larger than the sum of its proper divisors (12733282).

13143968 is an equidigital number, since it uses as much as digits as its factorization.

13143968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410759 (or 410751 counting only the distinct ones).

The product of its digits is 15552, while the sum is 35.

The square root of 13143968 is about 3625.4610741256. The cubic root of 13143968 is about 235.9982763448.

The spelling of 13143968 in words is "thirteen million, one hundred forty-three thousand, nine hundred sixty-eight".