150664321 has 2 divisors, whose sum is σ = 150664322. Its totient is φ = 150664320.

The previous prime is 150664253. The next prime is 150664331. The reversal of 150664321 is 123466051.

150664321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79852096 + 70812225 = 8936^2 + 8415^2 .

It is a cyclic number.

It is not a de Polignac number, because 150664321 - 2²³ = 142275713 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 150664321.

It is not a weakly prime, because it can be changed into another prime (150664331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75332160 + 75332161.

It is an arithmetic number, because the mean of its divisors is an integer number (75332161).

Almost surely, 2^150664321 is an apocalyptic number.

It is an amenable number.

150664321 is a deficient number, since it is larger than the sum of its proper divisors (1).

150664321 is an equidigital number, since it uses as much as digits as its factorization.

150664321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 150664321 is about 12274.5395432986. The cubic root of 150664321 is about 532.1125143616.

The spelling of 150664321 in words is "one hundred fifty million, six hundred sixty-four thousand, three hundred twenty-one".