13880181 has 40 divisors (see below), whose sum is σ = 22587264. Its totient is φ = 7573440.

The previous prime is 13880149. The next prime is 13880227. The reversal of 13880181 is 18108831.

It is not a de Polignac number, because 13880181 - 2⁵ = 13880149 is a prime.

It is a super-2 number, since 2×13880181² = 385318849185522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13880101) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 295300 + ... + 295346.

Almost surely, 2^13880181 is an apocalyptic number.

It is an amenable number.

13880181 is a deficient number, since it is larger than the sum of its proper divisors (8707083).

13880181 is an frugal number, since it uses more digits than its factorization.

13880181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 30.

The square root of 13880181 is about 3725.6114934330. The cubic root of 13880181 is about 240.3246820861.

The spelling of 13880181 in words is "thirteen million, eight hundred eighty thousand, one hundred eighty-one".