147842 has 8 divisors (see below), whose sum is σ = 229500. Its totient is φ = 71344.

The previous prime is 147827. The next prime is 147853. The reversal of 147842 is 248741.

It can be written as a sum of positive squares in 2 ways, for example, as 137641 + 10201 = 371^2 + 101^2 .

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

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147842.

It is an unprimeable number.

147842 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1217 + ... + 1332.

2¹⁴⁷⁸⁴² is an apocalyptic number.

147842 is a deficient number, since it is larger than the sum of its proper divisors (81658).

147842 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 147842 = (244718)₉.

147842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580.

The product of its digits is 1792, while the sum is 26.

The square root of 147842 is about 384.5022756760. The cubic root of 147842 is about 52.8768947712.

It can be divided in two parts, 147 and 842, that added together give a palindrome (989).

The spelling of 147842 in words is "one hundred forty-seven thousand, eight hundred forty-two".