13422142 has 4 divisors (see below), whose sum is σ = 20133216. Its totient is φ = 6711070.

The previous prime is 13422139. The next prime is 13422169. The reversal of 13422142 is 24122431.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3355534 + ... + 3355537.

It is an arithmetic number, because the mean of its divisors is an integer number (5033304).

Almost surely, 2^13422142 is an apocalyptic number.

13422142 is a deficient number, since it is larger than the sum of its proper divisors (6711074).

13422142 is an equidigital number, since it uses as much as digits as its factorization.

13422142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6711073.

The product of its digits is 384, while the sum is 19.

The square root of 13422142 is about 3663.6241619467. The cubic root of 13422142 is about 237.6515273109.

Adding to 13422142 its reverse (24122431), we get a palindrome (37544573).

The spelling of 13422142 in words is "thirteen million, four hundred twenty-two thousand, one hundred forty-two".