150000161 has 4 divisors (see below), whose sum is σ = 150026052. Its totient is φ = 149974272.

The previous prime is 150000157. The next prime is 150000167. The reversal of 150000161 is 161000051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53567761 + 96432400 = 7319^2 + 9820^2 .

It is a cyclic number.

It is not a de Polignac number, because 150000161 - 2² = 150000157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150000167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185 + ... + 17321.

It is an arithmetic number, because the mean of its divisors is an integer number (37506513).

Almost surely, 2^150000161 is an apocalyptic number.

It is an amenable number.

150000161 is a deficient number, since it is larger than the sum of its proper divisors (25891).

150000161 is an equidigital number, since it uses as much as digits as its factorization.

150000161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25890.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 150000161 is about 12247.4552867116. The cubic root of 150000161 is about 531.3294746890.

The spelling of 150000161 in words is "one hundred fifty million, one hundred sixty-one", and thus it is an aban number.