150520169 has 2 divisors, whose sum is σ = 150520170. Its totient is φ = 150520168.

The previous prime is 150520157. The next prime is 150520177. The reversal of 150520169 is 961025051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83083225 + 67436944 = 9115^2 + 8212^2 .

It is a cyclic number.

It is not a de Polignac number, because 150520169 - 2⁸ = 150519913 is a prime.

It is a super-2 number, since 2×150520169² = 45312642551577122, which contains 22 as substring.

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 (150520189) 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, 75260084 + 75260085.

It is an arithmetic number, because the mean of its divisors is an integer number (75260085).

Almost surely, 2^150520169 is an apocalyptic number.

It is an amenable number.

150520169 is a deficient number, since it is larger than the sum of its proper divisors (1).

150520169 is an equidigital number, since it uses as much as digits as its factorization.

150520169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 150520169 is about 12268.6661459182. Note that the first 3 decimals coincide. The cubic root of 150520169 is about 531.9427560564.

The spelling of 150520169 in words is "one hundred fifty million, five hundred twenty thousand, one hundred sixty-nine".