152647321 has 2 divisors, whose sum is σ = 152647322. Its totient is φ = 152647320.

The previous prime is 152647309. The next prime is 152647361. The reversal of 152647321 is 123746251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152646025 + 1296 = 12355^2 + 36^2 .

It is an emirp because it is prime and its reverse (123746251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 152647321 - 2¹³ = 152639129 is a prime.

It is not a weakly prime, because it can be changed into another prime (152647361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76323660 + 76323661.

It is an arithmetic number, because the mean of its divisors is an integer number (76323661).

Almost surely, 2^152647321 is an apocalyptic number.

It is an amenable number.

152647321 is a deficient number, since it is larger than the sum of its proper divisors (1).

152647321 is an equidigital number, since it uses as much as digits as its factorization.

152647321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 152647321 is about 12355.0524482901. The cubic root of 152647321 is about 534.4368499982.

The spelling of 152647321 in words is "one hundred fifty-two million, six hundred forty-seven thousand, three hundred twenty-one".