13381147 has 8 divisors (see below), whose sum is σ = 15037344. Its totient is φ = 11814528.

The previous prime is 13381117. The next prime is 13381153. The reversal of 13381147 is 74118331.

13381147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 13381147 - 2⁷ = 13381019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13381117) 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, 22078 + ... + 22675.

It is an arithmetic number, because the mean of its divisors is an integer number (1879668).

Almost surely, 2^13381147 is an apocalyptic number.

13381147 is a deficient number, since it is larger than the sum of its proper divisors (1656197).

13381147 is a wasteful number, since it uses less digits than its factorization.

13381147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44789.

The product of its digits is 2016, while the sum is 28.

The square root of 13381147 is about 3658.0250135831. The cubic root of 13381147 is about 237.4093290083.

Adding to 13381147 its reverse (74118331), we get a palindrome (87499478).

It can be divided in two parts, 1338 and 1147, that added together give a triangular number (2485 = T₇₀).

The spelling of 13381147 in words is "thirteen million, three hundred eighty-one thousand, one hundred forty-seven".