150665971 has 2 divisors, whose sum is σ = 150665972. Its totient is φ = 150665970.

The previous prime is 150665959. The next prime is 150665987. The reversal of 150665971 is 179566051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 150665971 - 2¹¹ = 150663923 is a prime.

It is not a weakly prime, because it can be changed into another prime (150665071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75332985 + 75332986.

It is an arithmetic number, because the mean of its divisors is an integer number (75332986).

Almost surely, 2^150665971 is an apocalyptic number.

150665971 is a deficient number, since it is larger than the sum of its proper divisors (1).

150665971 is an equidigital number, since it uses as much as digits as its factorization.

150665971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 150665971 is about 12274.6067554118. The cubic root of 150665971 is about 532.1144568309.

The spelling of 150665971 in words is "one hundred fifty million, six hundred sixty-five thousand, nine hundred seventy-one".