13144486 has 4 divisors (see below), whose sum is σ = 19716732. Its totient is φ = 6572242.

The previous prime is 13144459. The next prime is 13144487. The reversal of 13144486 is 68444131.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3286120 + ... + 3286123.

It is an arithmetic number, because the mean of its divisors is an integer number (4929183).

Almost surely, 2^13144486 is an apocalyptic number.

13144486 is a deficient number, since it is larger than the sum of its proper divisors (6572246).

13144486 is an equidigital number, since it uses as much as digits as its factorization.

13144486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6572245.

The product of its digits is 9216, while the sum is 31.

The square root of 13144486 is about 3625.5325126111. The cubic root of 13144486 is about 236.0013765121.

The spelling of 13144486 in words is "thirteen million, one hundred forty-four thousand, four hundred eighty-six".