13471881 has 8 divisors (see below), whose sum is σ = 18001344. Its totient is φ = 8961840.

The previous prime is 13471877. The next prime is 13471889. The reversal of 13471881 is 18817431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13471881 - 2² = 13471877 is a prime.

It is a super-2 number, since 2×13471881² = 362983155356322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13471889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3150 + ... + 6071.

It is an arithmetic number, because the mean of its divisors is an integer number (2250168).

Almost surely, 2^13471881 is an apocalyptic number.

It is an amenable number.

13471881 is a deficient number, since it is larger than the sum of its proper divisors (4529463).

13471881 is an equidigital number, since it uses as much as digits as its factorization.

13471881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711.

The product of its digits is 5376, while the sum is 33.

The square root of 13471881 is about 3670.4061083210. The cubic root of 13471881 is about 237.9447238812.

The spelling of 13471881 in words is "thirteen million, four hundred seventy-one thousand, eight hundred eighty-one".