13881069 has 12 divisors (see below), whose sum is σ = 20107776. Its totient is φ = 9227592.

The previous prime is 13881067. The next prime is 13881079. The reversal of 13881069 is 96018831.

It is not a de Polignac number, because 13881069 - 2¹ = 13881067 is a prime.

It is a super-2 number, since 2×13881069² = 385368153165522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1434 + ... + 5460.

It is an arithmetic number, because the mean of its divisors is an integer number (1675648).

Almost surely, 2^13881069 is an apocalyptic number.

It is an amenable number.

13881069 is a deficient number, since it is larger than the sum of its proper divisors (6226707).

13881069 is a wasteful number, since it uses less digits than its factorization.

13881069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4416 (or 4413 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 13881069 is about 3725.7306665941. The cubic root of 13881069 is about 240.3298069897.

The spelling of 13881069 in words is "thirteen million, eight hundred eighty-one thousand, sixty-nine".