13409143 has 8 divisors (see below), whose sum is σ = 15100416. Its totient is φ = 11796600.

The previous prime is 13409119. The next prime is 13409153. The reversal of 13409143 is 34190431.

It is a happy number.

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 13409143 - 2⁵ = 13409111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13409113) 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, 19321 + ... + 20002.

It is an arithmetic number, because the mean of its divisors is an integer number (1887552).

Almost surely, 2^13409143 is an apocalyptic number.

13409143 is a deficient number, since it is larger than the sum of its proper divisors (1691273).

13409143 is a wasteful number, since it uses less digits than its factorization.

13409143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39365.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13409143 is about 3661.8496692246. The cubic root of 13409143 is about 237.5747827292.

Adding to 13409143 its reverse (34190431), we get a palindrome (47599574).

The spelling of 13409143 in words is "thirteen million, four hundred nine thousand, one hundred forty-three".