147355321 has 9 divisors (see below), whose sum is σ = 150567183. Its totient is φ = 144211320.

The previous prime is 147355309. The next prime is 147355339. The reversal of 147355321 is 123553741.

It is a happy number.

The square root of 147355321 is 12139.

It is a perfect power (a square), and thus also a powerful number.

147355321 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 only one way, i.e., 4791721 + 142563600 = 2189^2 + 11940^2 .

It is not a de Polignac number, because 147355321 - 2¹³ = 147347129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147355301) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 740380 + ... + 740578.

It is an arithmetic number, because the mean of its divisors is an integer number (16729687).

Almost surely, 2^147355321 is an apocalyptic number.

147355321 is the 12139-th square number.

147355321 is the 6070-th centered octagonal number.

It is an amenable number.

147355321 is a deficient number, since it is larger than the sum of its proper divisors (3211862).

147355321 is an frugal number, since it uses more digits than its factorization.

147355321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 260 counting only the distinct ones).

The product of its digits is 12600, while the sum is 31.

The cubic root of 147355321 is about 528.1880941904.

The spelling of 147355321 in words is "one hundred forty-seven million, three hundred fifty-five thousand, three hundred twenty-one".