165937033 has 4 divisors (see below), whose sum is σ = 166085140. Its totient is φ = 165788928.

The previous prime is 165937007. The next prime is 165937039. The reversal of 165937033 is 330739561.

It is a happy number.

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 62141689 + 103795344 = 7883^2 + 10188^2 .

It is a cyclic number.

It is not a de Polignac number, because 165937033 - 2⁵ = 165937001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165936983 and 165937001.

It is not an unprimeable number, because it can be changed into a prime (165937039) 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, 72360 + ... + 74617.

It is an arithmetic number, because the mean of its divisors is an integer number (41521285).

Almost surely, 2^165937033 is an apocalyptic number.

It is an amenable number.

165937033 is a deficient number, since it is larger than the sum of its proper divisors (148107).

165937033 is a wasteful number, since it uses less digits than its factorization.

165937033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148106.

The product of its (nonzero) digits is 51030, while the sum is 37.

The square root of 165937033 is about 12881.6549014480. The cubic root of 165937033 is about 549.5169676411.

The spelling of 165937033 in words is "one hundred sixty-five million, nine hundred thirty-seven thousand, thirty-three".