165241538 has 16 divisors (see below), whose sum is σ = 309023424. Its totient is φ = 64379760.

The previous prime is 165241511. The next prime is 165241541. The reversal of 165241538 is 835142561.

It is a junction number, because it is equal to n+sod(n) for n = 165241498 and 165241507.

It is an unprimeable number.

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, 536345 + ... + 536652.

It is an arithmetic number, because the mean of its divisors is an integer number (19313964).

Almost surely, 2^165241538 is an apocalyptic number.

165241538 is a deficient number, since it is larger than the sum of its proper divisors (143781886).

165241538 is a wasteful number, since it uses less digits than its factorization.

165241538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073017.

The product of its digits is 28800, while the sum is 35.

The square root of 165241538 is about 12854.6309943149. The cubic root of 165241538 is about 548.7481589386.

The spelling of 165241538 in words is "one hundred sixty-five million, two hundred forty-one thousand, five hundred thirty-eight".