165059541 has 12 divisors (see below), whose sum is σ = 238844320. Its totient is φ = 109843560.

The previous prime is 165059537. The next prime is 165059551. The reversal of 165059541 is 145950561.

165059541 is a `hidden beast` number, since 1 + 65 + 0 + 59 + 541 = 666.

It is not a de Polignac number, because 165059541 - 2² = 165059537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165059496 and 165059505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165059501) 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 11 ways as a sum of consecutive naturals, for example, 10921 + ... + 21198.

Almost surely, 2^165059541 is an apocalyptic number.

It is an amenable number.

165059541 is a deficient number, since it is larger than the sum of its proper divisors (73784779).

165059541 is a wasteful number, since it uses less digits than its factorization.

165059541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32696 (or 32693 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The square root of 165059541 is about 12847.5499999027. The cubic root of 165059541 is about 548.5466212217.

It can be divided in two parts, 165059 and 541, that added together give a triangular number (165600 = T₅₇₅).

The spelling of 165059541 in words is "one hundred sixty-five million, fifty-nine thousand, five hundred forty-one".