150221329 has 2 divisors, whose sum is σ = 150221330. Its totient is φ = 150221328.

The previous prime is 150221321. The next prime is 150221339. The reversal of 150221329 is 923122051.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135955600 + 14265729 = 11660^2 + 3777^2 .

It is an emirp because it is prime and its reverse (923122051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150221329 - 2³ = 150221321 is a prime.

It is not a weakly prime, because it can be changed into another prime (150221321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75110664 + 75110665.

It is an arithmetic number, because the mean of its divisors is an integer number (75110665).

Almost surely, 2^150221329 is an apocalyptic number.

It is an amenable number.

150221329 is a deficient number, since it is larger than the sum of its proper divisors (1).

150221329 is an equidigital number, since it uses as much as digits as its factorization.

150221329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 150221329 is about 12256.4811018497. The cubic root of 150221329 is about 531.5904863394.

The spelling of 150221329 in words is "one hundred fifty million, two hundred twenty-one thousand, three hundred twenty-nine".