165242235 has 16 divisors (see below), whose sum is σ = 275883264. Its totient is φ = 84297312.

The previous prime is 165242213. The next prime is 165242243. The reversal of 165242235 is 532242561.

It is not a de Polignac number, because 165242235 - 2⁹ = 165241723 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 239137 + ... + 239826.

It is an arithmetic number, because the mean of its divisors is an integer number (17242704).

Almost surely, 2^165242235 is an apocalyptic number.

165242235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165242235 is a deficient number, since it is larger than the sum of its proper divisors (110641029).

165242235 is a wasteful number, since it uses less digits than its factorization.

165242235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478994.

The product of its digits is 14400, while the sum is 30.

The square root of 165242235 is about 12854.6581051384. The cubic root of 165242235 is about 548.7489304898.

Adding to 165242235 its reverse (532242561), we get a palindrome (697484796).

The spelling of 165242235 in words is "one hundred sixty-five million, two hundred forty-two thousand, two hundred thirty-five".