13049661 has 8 divisors (see below), whose sum is σ = 17527104. Its totient is φ = 8636000.

The previous prime is 13049653. The next prime is 13049677. The reversal of 13049661 is 16694031.

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 13049661 - 2³ = 13049653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13049611) 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, 15465 + ... + 16286.

It is an arithmetic number, because the mean of its divisors is an integer number (2190888).

Almost surely, 2^13049661 is an apocalyptic number.

It is an amenable number.

13049661 is a deficient number, since it is larger than the sum of its proper divisors (4477443).

13049661 is a wasteful number, since it uses less digits than its factorization.

13049661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31891.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 13049661 is about 3612.4314526369. The cubic root of 13049661 is about 235.4324976362.

The spelling of 13049661 in words is "thirteen million, forty-nine thousand, six hundred sixty-one".