19142 has 8 divisors (see below), whose sum is σ = 30456. Its totient is φ = 8992.
The previous prime is 19141. The next prime is 19157. The reversal of 19142 is 24191.
It is a happy number.
19142 is nontrivially palindromic in base 3.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a self number, because there is not a number n which added to its sum of digits gives 19142.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (19141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248 + ... + 315.
It is an arithmetic number, because the mean of its divisors is an integer number (3807).
219142 is an apocalyptic number.
19142 is a deficient number, since it is larger than the sum of its proper divisors (11314).
19142 is a wasteful number, since it uses less digits than its factorization.
19142 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 582.
The product of its digits is 72, while the sum is 17.
The square root of 19142 is about 138.3546168366. The cubic root of 19142 is about 26.7503275355.
It can be divided in two parts, 1914 and 2, that multiplied together give a triangular number (3828 = T87).
The spelling of 19142 in words is "nineteen thousand, one hundred forty-two".
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