165150213 has 4 divisors (see below), whose sum is σ = 220200288. Its totient is φ = 110100140.

The previous prime is 165150197. The next prime is 165150217. The reversal of 165150213 is 312051561.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 165150213 - 2⁴ = 165150197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165150217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27525033 + ... + 27525038.

It is an arithmetic number, because the mean of its divisors is an integer number (55050072).

Almost surely, 2^165150213 is an apocalyptic number.

It is an amenable number.

165150213 is a deficient number, since it is larger than the sum of its proper divisors (55050075).

165150213 is an equidigital number, since it uses as much as digits as its factorization.

165150213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55050074.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 165150213 is about 12851.0782816073. The cubic root of 165150213 is about 548.6470470322.

The spelling of 165150213 in words is "one hundred sixty-five million, one hundred fifty thousand, two hundred thirteen".