150002161 has 2 divisors, whose sum is σ = 150002162. Its totient is φ = 150002160.

The previous prime is 150002143. The next prime is 150002191. The reversal of 150002161 is 161200051.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133841761 + 16160400 = 11569^2 + 4020^2 .

It is a cyclic number.

It is not a de Polignac number, because 150002161 - 2¹¹ = 150000113 is a prime.

It is not a weakly prime, because it can be changed into another prime (150002191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75001080 + 75001081.

It is an arithmetic number, because the mean of its divisors is an integer number (75001081).

Almost surely, 2^150002161 is an apocalyptic number.

It is an amenable number.

150002161 is a deficient number, since it is larger than the sum of its proper divisors (1).

150002161 is an equidigital number, since it uses as much as digits as its factorization.

150002161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 150002161 is about 12247.5369360537. The cubic root of 150002161 is about 531.3318361404.

It can be divided in two parts, 15000 and 2161, that added together give a square (17161 = 131²).

The spelling of 150002161 in words is "one hundred fifty million, two thousand, one hundred sixty-one".