165100273 has 4 divisors (see below), whose sum is σ = 177800308. Its totient is φ = 152400240.

The previous prime is 165100267. The next prime is 165100307. The reversal of 165100273 is 372001561.

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 92390544 + 72709729 = 9612^2 + 8527^2 .

It is a cyclic number.

It is not a de Polignac number, because 165100273 - 2⁵ = 165100241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165100213) 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, 6349998 + ... + 6350023.

It is an arithmetic number, because the mean of its divisors is an integer number (44450077).

Almost surely, 2^165100273 is an apocalyptic number.

165100273 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

165100273 is a deficient number, since it is larger than the sum of its proper divisors (12700035).

165100273 is a wasteful number, since it uses less digits than its factorization.

165100273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12700034.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 165100273 is about 12849.1351070802. The cubic root of 165100273 is about 548.5917394120.

The spelling of 165100273 in words is "one hundred sixty-five million, one hundred thousand, two hundred seventy-three".