13322661 has 8 divisors (see below), whose sum is σ = 19378464. Its totient is φ = 8074320.

The previous prime is 13322657. The next prime is 13322669. The reversal of 13322661 is 16622331.

It is a happy number.

13322661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13322661 - 2² = 13322657 is a prime.

It is a super-2 number, since 2×13322661² = 354986592241842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13322669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201826 + ... + 201891.

It is an arithmetic number, because the mean of its divisors is an integer number (2422308).

Almost surely, 2^13322661 is an apocalyptic number.

13322661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13322661 is a deficient number, since it is larger than the sum of its proper divisors (6055803).

13322661 is a wasteful number, since it uses less digits than its factorization.

13322661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403731.

The product of its digits is 1296, while the sum is 24.

The square root of 13322661 is about 3650.0220547279. The cubic root of 13322661 is about 237.0629361600.

Adding to 13322661 its reverse (16622331), we get a palindrome (29944992).

It can be divided in two parts, 1332 and 2661, that added together give a palindrome (3993).

The spelling of 13322661 in words is "thirteen million, three hundred twenty-two thousand, six hundred sixty-one".