13142842 has 4 divisors (see below), whose sum is σ = 19714266. Its totient is φ = 6571420.

The previous prime is 13142839. The next prime is 13142861. The reversal of 13142842 is 24824131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10949481 + 2193361 = 3309^2 + 1481^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3285709 + ... + 3285712.

Almost surely, 2^13142842 is an apocalyptic number.

13142842 is a deficient number, since it is larger than the sum of its proper divisors (6571424).

13142842 is an equidigital number, since it uses as much as digits as its factorization.

13142842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6571423.

The product of its digits is 1536, while the sum is 25.

The square root of 13142842 is about 3625.3057802067. The cubic root of 13142842 is about 235.9915370900.

Adding to 13142842 its reverse (24824131), we get a palindrome (37966973).

The spelling of 13142842 in words is "thirteen million, one hundred forty-two thousand, eight hundred forty-two".