13122143 has 4 divisors (see below), whose sum is σ = 13129440. Its totient is φ = 13114848.

The previous prime is 13122133. The next prime is 13122157. The reversal of 13122143 is 34122131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13122143 - 2⁴ = 13122127 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178 + ... + 5256.

It is an arithmetic number, because the mean of its divisors is an integer number (3282360).

Almost surely, 2^13122143 is an apocalyptic number.

13122143 is a deficient number, since it is larger than the sum of its proper divisors (7297).

13122143 is an equidigital number, since it uses as much as digits as its factorization.

13122143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296.

The product of its digits is 144, while the sum is 17.

The square root of 13122143 is about 3622.4498616268. The cubic root of 13122143 is about 235.8675822796.

Adding to 13122143 its reverse (34122131), we get a palindrome (47244274).

The spelling of 13122143 in words is "thirteen million, one hundred twenty-two thousand, one hundred forty-three".