13969549 has 16 divisors (see below), whose sum is σ = 15713280. Its totient is φ = 12312000.

The previous prime is 13969537. The next prime is 13969559. The reversal of 13969549 is 94596931.

It is a cyclic number.

It is not a de Polignac number, because 13969549 - 2⁵ = 13969517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13969499 and 13969508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13969559) 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 15 ways as a sum of consecutive naturals, for example, 73044 + ... + 73234.

It is an arithmetic number, because the mean of its divisors is an integer number (982080).

Almost surely, 2^13969549 is an apocalyptic number.

It is an amenable number.

13969549 is a deficient number, since it is larger than the sum of its proper divisors (1743731).

13969549 is a wasteful number, since it uses less digits than its factorization.

13969549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372.

The product of its digits is 262440, while the sum is 46.

The square root of 13969549 is about 3737.5859856330. The cubic root of 13969549 is about 240.8393585202.

The spelling of 13969549 in words is "thirteen million, nine hundred sixty-nine thousand, five hundred forty-nine".