150064721 has 2 divisors, whose sum is σ = 150064722. Its totient is φ = 150064720.

The previous prime is 150064699. The next prime is 150064753. The reversal of 150064721 is 127460051.

150064721 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., 138768400 + 11296321 = 11780^2 + 3361^2 .

It is an emirp because it is prime and its reverse (127460051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150064721 - 2¹⁸ = 149802577 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (150064771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75032360 + 75032361.

It is an arithmetic number, because the mean of its divisors is an integer number (75032361).

Almost surely, 2^150064721 is an apocalyptic number.

It is an amenable number.

150064721 is a deficient number, since it is larger than the sum of its proper divisors (1).

150064721 is an equidigital number, since it uses as much as digits as its factorization.

150064721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 150064721 is about 12250.0906527258. The cubic root of 150064721 is about 531.4056917423.

The spelling of 150064721 in words is "one hundred fifty million, sixty-four thousand, seven hundred twenty-one".