147240 has 48 divisors (see below), whose sum is σ = 479700. Its totient is φ = 39168.

The previous prime is 147229. The next prime is 147253. The reversal of 147240 is 42741.

It is a happy number.

147240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 142884 + 4356 = 378^2 + 66^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

147240 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156 + ... + 564.

2¹⁴⁷²⁴⁰ is an apocalyptic number.

147240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239850).

147240 is an abundant number, since it is smaller than the sum of its proper divisors (332460).

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

147240 is a wasteful number, since it uses less digits than its factorization.

147240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 419 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 147240 is about 383.7186469277. The cubic root of 147240 is about 52.8050270696.

Adding to 147240 its reverse (42741), we get a palindrome (189981).

The spelling of 147240 in words is "one hundred forty-seven thousand, two hundred forty", and thus it is an iban number.