13142668 has 48 divisors (see below), whose sum is σ = 29127168. Its totient is φ = 5040000.

The previous prime is 13142641. The next prime is 13142693. The reversal of 13142668 is 86624131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21568 + ... + 22168.

It is an arithmetic number, because the mean of its divisors is an integer number (606816).

Almost surely, 2^13142668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13142668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14563584).

13142668 is an abundant number, since it is smaller than the sum of its proper divisors (15984500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13142668 is a wasteful number, since it uses less digits than its factorization.

13142668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694 (or 692 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 13142668 is about 3625.2817821516. The cubic root of 13142668 is about 235.9904956433.

Adding to 13142668 its reverse (86624131), we get a palindrome (99766799).

The spelling of 13142668 in words is "thirteen million, one hundred forty-two thousand, six hundred sixty-eight".