147073321 has 2 divisors, whose sum is σ = 147073322. Its totient is φ = 147073320.

The previous prime is 147073279. The next prime is 147073327. The reversal of 147073321 is 123370741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100000000 + 47073321 = 10000^2 + 6861^2 .

It is a cyclic number.

It is not a de Polignac number, because 147073321 - 2¹⁷ = 146942249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147073321.

It is not a weakly prime, because it can be changed into another prime (147073327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73536660 + 73536661.

It is an arithmetic number, because the mean of its divisors is an integer number (73536661).

Almost surely, 2^147073321 is an apocalyptic number.

It is an amenable number.

147073321 is a deficient number, since it is larger than the sum of its proper divisors (1).

147073321 is an equidigital number, since it uses as much as digits as its factorization.

147073321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 147073321 is about 12127.3789831109. The cubic root of 147073321 is about 527.8509405237.

The spelling of 147073321 in words is "one hundred forty-seven million, seventy-three thousand, three hundred twenty-one".