13881029 has 4 divisors (see below), whose sum is σ = 14484576. Its totient is φ = 13277484.

The previous prime is 13881017. The next prime is 13881037. The reversal of 13881029 is 92018831.

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: 92018831 = 3833 ⋅24007.

It is a cyclic number.

It is not a de Polignac number, because 13881029 - 2⁴ = 13881013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13880986 and 13881004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881059) 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, 301739 + ... + 301784.

It is an arithmetic number, because the mean of its divisors is an integer number (3621144).

Almost surely, 2^13881029 is an apocalyptic number.

It is an amenable number.

13881029 is a deficient number, since it is larger than the sum of its proper divisors (603547).

13881029 is an equidigital number, since it uses as much as digits as its factorization.

13881029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603546.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 13881029 is about 3725.7252985157. The cubic root of 13881029 is about 240.3295761429.

The spelling of 13881029 in words is "thirteen million, eight hundred eighty-one thousand, twenty-nine".