147280 has 40 divisors (see below), whose sum is σ = 392832. Its totient is φ = 50304.

The previous prime is 147263. The next prime is 147283. The reversal of 147280 is 82741.

147280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429 + ... + 691.

2¹⁴⁷²⁸⁰ is an apocalyptic number.

147280 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 147280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196416).

147280 is an abundant number, since it is smaller than the sum of its proper divisors (245552).

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

147280 is a wasteful number, since it uses less digits than its factorization.

147280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 147280 is about 383.7707649105. The cubic root of 147280 is about 52.8098084013.

The spelling of 147280 in words is "one hundred forty-seven thousand, two hundred eighty".