13355881 has 24 divisors (see below), whose sum is σ = 17236800. Its totient is φ = 10231200.

The previous prime is 13355869. The next prime is 13355887. The reversal of 13355881 is 18855331.

It is not a de Polignac number, because 13355881 - 2¹³ = 13347689 is a prime.

It is a super-2 number, since 2×13355881² = 356759114572322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13355887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38095 + ... + 38443.

It is an arithmetic number, because the mean of its divisors is an integer number (718200).

Almost surely, 2^13355881 is an apocalyptic number.

13355881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13355881 is a deficient number, since it is larger than the sum of its proper divisors (3880919).

13355881 is a wasteful number, since it uses less digits than its factorization.

13355881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445 (or 438 counting only the distinct ones).

The product of its digits is 14400, while the sum is 34.

The square root of 13355881 is about 3654.5698789324. The cubic root of 13355881 is about 237.2598110979.

The spelling of 13355881 in words is "thirteen million, three hundred fifty-five thousand, eight hundred eighty-one".