13432661 has 8 divisors (see below), whose sum is σ = 14700000. Its totient is φ = 12173040.

The previous prime is 13432633. The next prime is 13432687. The reversal of 13432661 is 16623431.

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

It is a de Polignac number, because none of the positive numbers 2^k-13432661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13432661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13432061) 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, 2090 + ... + 5588.

It is an arithmetic number, because the mean of its divisors is an integer number (1837500).

Almost surely, 2^13432661 is an apocalyptic number.

13432661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13432661 is a deficient number, since it is larger than the sum of its proper divisors (1267339).

13432661 is a wasteful number, since it uses less digits than its factorization.

13432661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3859.

The product of its digits is 2592, while the sum is 26.

The square root of 13432661 is about 3665.0594810999. The cubic root of 13432661 is about 237.7135939977.

It can be divided in two parts, 1343 and 2661, that added together give a palindrome (4004).

The spelling of 13432661 in words is "thirteen million, four hundred thirty-two thousand, six hundred sixty-one".