150665161 has 4 divisors (see below), whose sum is σ = 150700932. Its totient is φ = 150629392.

The previous prime is 150665113. The next prime is 150665171. The reversal of 150665161 is 161566051.

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 49280400 + 101384761 = 7020^2 + 10069^2 .

It is a cyclic number.

It is not a de Polignac number, because 150665161 - 2¹¹ = 150663113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150665171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10570 + ... + 20323.

It is an arithmetic number, because the mean of its divisors is an integer number (37675233).

Almost surely, 2^150665161 is an apocalyptic number.

It is an amenable number.

150665161 is a deficient number, since it is larger than the sum of its proper divisors (35771).

150665161 is an equidigital number, since it uses as much as digits as its factorization.

150665161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35770.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 150665161 is about 12274.5737604204. The cubic root of 150665161 is about 532.1135032568.

The spelling of 150665161 in words is "one hundred fifty million, six hundred sixty-five thousand, one hundred sixty-one".