13698149 has 2 divisors, whose sum is σ = 13698150. Its totient is φ = 13698148.

The previous prime is 13698143. The next prime is 13698151. The reversal of 13698149 is 94189631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10432900 + 3265249 = 3230^2 + 1807^2 .

It is a cyclic number.

It is not a de Polignac number, because 13698149 - 2¹² = 13694053 is a prime.

Together with 13698151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13698143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6849074 + 6849075.

It is an arithmetic number, because the mean of its divisors is an integer number (6849075).

Almost surely, 2^13698149 is an apocalyptic number.

It is an amenable number.

13698149 is a deficient number, since it is larger than the sum of its proper divisors (1).

13698149 is an equidigital number, since it uses as much as digits as its factorization.

13698149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 13698149 is about 3701.1010523897. The cubic root of 13698149 is about 239.2694742418.

The spelling of 13698149 in words is "thirteen million, six hundred ninety-eight thousand, one hundred forty-nine".