165044531 has 8 divisors (see below), whose sum is σ = 169955760. Its totient is φ = 160157088.

The previous prime is 165044521. The next prime is 165044563. The reversal of 165044531 is 135440561.

It is a happy number.

165044531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 165044531 - 2¹⁴ = 165028147 is a prime.

It is a super-2 number, since 2×165044531² = 54479394426019922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165044494 and 165044503.

It is not an unprimeable number, because it can be changed into a prime (165044521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8660 + ... + 20126.

It is an arithmetic number, because the mean of its divisors is an integer number (21244470).

Almost surely, 2^165044531 is an apocalyptic number.

165044531 is a deficient number, since it is larger than the sum of its proper divisors (4911229).

165044531 is a wasteful number, since it uses less digits than its factorization.

165044531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11893.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 165044531 is about 12846.9658285527. The cubic root of 165044531 is about 548.5299930112.

The spelling of 165044531 in words is "one hundred sixty-five million, forty-four thousand, five hundred thirty-one".