13706149 has 4 divisors (see below), whose sum is σ = 13717036. Its totient is φ = 13695264.

The previous prime is 13706141. The next prime is 13706159. The reversal of 13706149 is 94160731.

It is a happy number.

13706149 is nontrivially palindromic in base 7.

13706149 is digitally balanced in base 3, 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 11902500 + 1803649 = 3450^2 + 1343^2 .

It is a cyclic number.

It is not a de Polignac number, because 13706149 - 2³ = 13706141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13706149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13706141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3264 + ... + 6169.

It is an arithmetic number, because the mean of its divisors is an integer number (3429259).

Almost surely, 2^13706149 is an apocalyptic number.

It is an amenable number.

13706149 is a deficient number, since it is larger than the sum of its proper divisors (10887).

13706149 is an equidigital number, since it uses as much as digits as its factorization.

13706149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10886.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 13706149 is about 3702.1816541061. The cubic root of 13706149 is about 239.3160446040.

The spelling of 13706149 in words is "thirteen million, seven hundred six thousand, one hundred forty-nine".