150159721 has 2 divisors, whose sum is σ = 150159722. Its totient is φ = 150159720.

The previous prime is 150159707. The next prime is 150159731. The reversal of 150159721 is 127951051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102010000 + 48149721 = 10100^2 + 6939^2 .

It is a cyclic number.

It is not a de Polignac number, because 150159721 - 2¹¹ = 150157673 is a prime.

It is not a weakly prime, because it can be changed into another prime (150159731) 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, 75079860 + 75079861.

It is an arithmetic number, because the mean of its divisors is an integer number (75079861).

Almost surely, 2^150159721 is an apocalyptic number.

It is an amenable number.

150159721 is a deficient number, since it is larger than the sum of its proper divisors (1).

150159721 is an equidigital number, since it uses as much as digits as its factorization.

150159721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 31.

The square root of 150159721 is about 12253.9675615696. The cubic root of 150159721 is about 531.5178053492.

The spelling of 150159721 in words is "one hundred fifty million, one hundred fifty-nine thousand, seven hundred twenty-one".