13138466 has 16 divisors (see below), whose sum is σ = 21556800. Its totient is φ = 5956080.

The previous prime is 13138457. The next prime is 13138471. The reversal of 13138466 is 66483131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12680 + ... + 13676.

It is an arithmetic number, because the mean of its divisors is an integer number (1347300).

Almost surely, 2^13138466 is an apocalyptic number.

13138466 is a deficient number, since it is larger than the sum of its proper divisors (8418334).

13138466 is a wasteful number, since it uses less digits than its factorization.

13138466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609.

The product of its digits is 10368, while the sum is 32.

The square root of 13138466 is about 3624.7021946637. The cubic root of 13138466 is about 235.9653425119.

It can be divided in two parts, 1313 and 8466, that added together give a palindrome (9779).

The spelling of 13138466 in words is "thirteen million, one hundred thirty-eight thousand, four hundred sixty-six".