13431142 has 8 divisors (see below), whose sum is σ = 20267856. Its totient is φ = 6675192.

The previous prime is 13431137. The next prime is 13431161. The reversal of 13431142 is 24113431.

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

It is a congruent number.

It is an unprimeable number.

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, 19773 + ... + 20440.

It is an arithmetic number, because the mean of its divisors is an integer number (2533482).

Almost surely, 2^13431142 is an apocalyptic number.

13431142 is a deficient number, since it is larger than the sum of its proper divisors (6836714).

13431142 is a wasteful number, since it uses less digits than its factorization.

13431142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40382.

The product of its digits is 288, while the sum is 19.

The square root of 13431142 is about 3664.8522480449. The cubic root of 13431142 is about 237.7046332375.

Adding to 13431142 its reverse (24113431), we get a palindrome (37544573).

It can be divided in two parts, 1343 and 1142, that added together give a triangular number (2485 = T₇₀).

The spelling of 13431142 in words is "thirteen million, four hundred thirty-one thousand, one hundred forty-two".