147642 has 16 divisors (see below), whose sum is σ = 322272. Its totient is φ = 44720.

The previous prime is 147629. The next prime is 147647. The reversal of 147642 is 246741.

It is a plaindrome in base 9.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147642.

It is not an unprimeable number, because it can be changed into a prime (147647) by changing a digit.

147642 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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1053 + ... + 1184.

It is an arithmetic number, because the mean of its divisors is an integer number (20142).

2¹⁴⁷⁶⁴² is an apocalyptic number.

147642 is an abundant number, since it is smaller than the sum of its proper divisors (174630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147642 is a wasteful number, since it uses less digits than its factorization.

147642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2253.

The product of its digits is 1344, while the sum is 24.

The square root of 147642 is about 384.2421111747. The cubic root of 147642 is about 52.8530401351.

Subtracting 147642 from its reverse (246741), we obtain a palindrome (99099).

The spelling of 147642 in words is "one hundred forty-seven thousand, six hundred forty-two".