13681066 has 16 divisors (see below), whose sum is σ = 23587200. Its totient is φ = 5829840.

The previous prime is 13681037. The next prime is 13681091. The reversal of 13681066 is 66018631.

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, 166 + ... + 5233.

It is an arithmetic number, because the mean of its divisors is an integer number (1474200).

Almost surely, 2^13681066 is an apocalyptic number.

13681066 is a deficient number, since it is larger than the sum of its proper divisors (9906134).

13681066 is a wasteful number, since it uses less digits than its factorization.

13681066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5589.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 13681066 is about 3698.7925056699. The cubic root of 13681066 is about 239.1699683217.

Adding to 13681066 its reverse (66018631), we get a palindrome (79699697).

The spelling of 13681066 in words is "thirteen million, six hundred eighty-one thousand, sixty-six".