147742 has 16 divisors (see below), whose sum is σ = 258912. Its totient is φ = 61920.

The previous prime is 147739. The next prime is 147743. The reversal of 147742 is 247741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147743) 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 7 ways as a sum of consecutive naturals, for example, 768 + ... + 940.

It is an arithmetic number, because the mean of its divisors is an integer number (16182).

2¹⁴⁷⁷⁴² is an apocalyptic number.

147742 is a deficient number, since it is larger than the sum of its proper divisors (111170).

147742 is a wasteful number, since it uses less digits than its factorization.

147742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243.

The product of its digits is 1568, while the sum is 25.

The square root of 147742 is about 384.3722154371. The cubic root of 147742 is about 52.8649701442.

Subtracting 147742 from its reverse (247741), we obtain a palindrome (99999).

The spelling of 147742 in words is "one hundred forty-seven thousand, seven hundred forty-two", and thus it is an iban number.