13120143 has 8 divisors (see below), whose sum is σ = 18254208. Its totient is φ = 8366424.

The previous prime is 13120139. The next prime is 13120153. The reversal of 13120143 is 34102131.

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

It is not a de Polignac number, because 13120143 - 2² = 13120139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95005 + ... + 95142.

It is an arithmetic number, because the mean of its divisors is an integer number (2281776).

Almost surely, 2^13120143 is an apocalyptic number.

13120143 is a deficient number, since it is larger than the sum of its proper divisors (5134065).

13120143 is a wasteful number, since it uses less digits than its factorization.

13120143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190173.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13120143 is about 3622.1737948365. The cubic root of 13120143 is about 235.8555984867.

Adding to 13120143 its reverse (34102131), we get a palindrome (47222274).

The spelling of 13120143 in words is "thirteen million, one hundred twenty thousand, one hundred forty-three".