13549901 has 4 divisors (see below), whose sum is σ = 14346972. Its totient is φ = 12752832.

The previous prime is 13549891. The next prime is 13549903. The reversal of 13549901 is 10994531.

13549901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4519876 + 9030025 = 2126^2 + 3005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13549901 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 (13549903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398510 + ... + 398543.

It is an arithmetic number, because the mean of its divisors is an integer number (3586743).

Almost surely, 2^13549901 is an apocalyptic number.

It is an amenable number.

13549901 is a deficient number, since it is larger than the sum of its proper divisors (797071).

13549901 is an equidigital number, since it uses as much as digits as its factorization.

13549901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797070.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 13549901 is about 3681.0190165225. The cubic root of 13549901 is about 238.4031781647.

The spelling of 13549901 in words is "thirteen million, five hundred forty-nine thousand, nine hundred one".