165310537 has 8 divisors (see below), whose sum is σ = 189210816. Its totient is φ = 141481392.

The previous prime is 165310529. The next prime is 165310543. The reversal of 165310537 is 735013561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 165310537 - 2³ = 165310529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165310499 and 165310508.

It is not an unprimeable number, because it can be changed into a prime (165310517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12703 + ... + 22180.

It is an arithmetic number, because the mean of its divisors is an integer number (23651352).

Almost surely, 2^165310537 is an apocalyptic number.

It is an amenable number.

165310537 is a deficient number, since it is larger than the sum of its proper divisors (23900279).

165310537 is an equidigital number, since it uses as much as digits as its factorization.

165310537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35567.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 165310537 is about 12857.3145329808. The cubic root of 165310537 is about 548.8245275600.

The spelling of 165310537 in words is "one hundred sixty-five million, three hundred ten thousand, five hundred thirty-seven".