13891061 has 8 divisors (see below), whose sum is σ = 14113440. Its totient is φ = 13670608.

The previous prime is 13891049. The next prime is 13891063. The reversal of 13891061 is 16019831.

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 13891061 - 2¹⁴ = 13874677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13891063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20750 + ... + 21408.

It is an arithmetic number, because the mean of its divisors is an integer number (1764180).

Almost surely, 2^13891061 is an apocalyptic number.

It is an amenable number.

13891061 is a deficient number, since it is larger than the sum of its proper divisors (222379).

13891061 is a wasteful number, since it uses less digits than its factorization.

13891061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 13891061 is about 3727.0713703926. The cubic root of 13891061 is about 240.3874586366.

The spelling of 13891061 in words is "thirteen million, eight hundred ninety-one thousand, sixty-one".