147355309 has 2 divisors, whose sum is σ = 147355310. Its totient is φ = 147355308.

The previous prime is 147355301. The next prime is 147355339. The reversal of 147355309 is 903553741.

147355309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142134084 + 5221225 = 11922^2 + 2285^2 .

It is an emirp because it is prime and its reverse (903553741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147355309 - 2³ = 147355301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147355301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73677654 + 73677655.

It is an arithmetic number, because the mean of its divisors is an integer number (73677655).

Almost surely, 2^147355309 is an apocalyptic number.

It is an amenable number.

147355309 is a deficient number, since it is larger than the sum of its proper divisors (1).

147355309 is an equidigital number, since it uses as much as digits as its factorization.

147355309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 147355309 is about 12138.9995057253. Note that the first 3 decimals coincide. The cubic root of 147355309 is about 528.1880798526.

The spelling of 147355309 in words is "one hundred forty-seven million, three hundred fifty-five thousand, three hundred nine".