13699149 has 4 divisors (see below), whose sum is σ = 18265536. Its totient is φ = 9132764.

The previous prime is 13699129. The next prime is 13699159. The reversal of 13699149 is 94199631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94199631 = 3 ⋅31399877.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13699149 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13699149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13699129) 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, 2283189 + ... + 2283194.

It is an arithmetic number, because the mean of its divisors is an integer number (4566384).

Almost surely, 2^13699149 is an apocalyptic number.

It is an amenable number.

13699149 is a deficient number, since it is larger than the sum of its proper divisors (4566387).

13699149 is an equidigital number, since it uses as much as digits as its factorization.

13699149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4566386.

The product of its digits is 52488, while the sum is 42.

The square root of 13699149 is about 3701.2361448576. The cubic root of 13699149 is about 239.2752965285.

The spelling of 13699149 in words is "thirteen million, six hundred ninety-nine thousand, one hundred forty-nine".