165273937 has 4 divisors (see below), whose sum is σ = 165394996. Its totient is φ = 165152880.

The previous prime is 165273917. The next prime is 165273943. The reversal of 165273937 is 739372561.

It is a happy number.

165273937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 57093136 + 108180801 = 7556^2 + 10401^2 .

It is a cyclic number.

It is not a de Polignac number, because 165273937 - 2¹¹ = 165271889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165273893 and 165273902.

It is not an unprimeable number, because it can be changed into a prime (165273917) 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, 58458 + ... + 61219.

It is an arithmetic number, because the mean of its divisors is an integer number (41348749).

Almost surely, 2^165273937 is an apocalyptic number.

It is an amenable number.

165273937 is a deficient number, since it is larger than the sum of its proper divisors (121059).

165273937 is a wasteful number, since it uses less digits than its factorization.

165273937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121058.

The product of its digits is 238140, while the sum is 43.

The square root of 165273937 is about 12855.8911398627. The cubic root of 165273937 is about 548.7840210468.

The spelling of 165273937 in words is "one hundred sixty-five million, two hundred seventy-three thousand, nine hundred thirty-seven".