13745147 has 8 divisors (see below), whose sum is σ = 14835744. Its totient is φ = 12659328.

The previous prime is 13745143. The next prime is 13745153. The reversal of 13745147 is 74154731.

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 13745147 - 2² = 13745143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13745141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6818 + ... + 8600.

It is an arithmetic number, because the mean of its divisors is an integer number (1854468).

Almost surely, 2^13745147 is an apocalyptic number.

13745147 is a deficient number, since it is larger than the sum of its proper divisors (1090597).

13745147 is a wasteful number, since it uses less digits than its factorization.

13745147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389.

The product of its digits is 11760, while the sum is 32.

The square root of 13745147 is about 3707.4448074112. Note that the first 3 decimals coincide. The cubic root of 13745147 is about 239.5428043722.

Adding to 13745147 its reverse (74154731), we get a palindrome (87899878).

The spelling of 13745147 in words is "thirteen million, seven hundred forty-five thousand, one hundred forty-seven".