13453661 has 8 divisors (see below), whose sum is σ = 14540064. Its totient is φ = 12374640.

The previous prime is 13453637. The next prime is 13453669. The reversal of 13453661 is 16635431.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13453661 - 2²² = 9259357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13453669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2306 + ... + 5676.

It is an arithmetic number, because the mean of its divisors is an integer number (1817508).

Almost surely, 2^13453661 is an apocalyptic number.

It is an amenable number.

13453661 is a deficient number, since it is larger than the sum of its proper divisors (1086403).

13453661 is a wasteful number, since it uses less digits than its factorization.

13453661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691.

The product of its digits is 6480, while the sum is 29.

The square root of 13453661 is about 3667.9232543771. The cubic root of 13453661 is about 237.8374063066.

The spelling of 13453661 in words is "thirteen million, four hundred fifty-three thousand, six hundred sixty-one".