13423143 has 16 divisors (see below), whose sum is σ = 18614880. Its totient is φ = 8593536.

The previous prime is 13423117. The next prime is 13423199. The reversal of 13423143 is 34132431.

13423143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13423143 - 2⁹ = 13422631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23821 + ... + 24377.

It is an arithmetic number, because the mean of its divisors is an integer number (1163430).

Almost surely, 2^13423143 is an apocalyptic number.

13423143 is a deficient number, since it is larger than the sum of its proper divisors (5191737).

13423143 is a wasteful number, since it uses less digits than its factorization.

13423143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866.

The product of its digits is 864, while the sum is 21.

The square root of 13423143 is about 3663.7607727580. The cubic root of 13423143 is about 237.6574350432.

Adding to 13423143 its reverse (34132431), we get a palindrome (47555574).

The spelling of 13423143 in words is "thirteen million, four hundred twenty-three thousand, one hundred forty-three".