165042452 has 6 divisors (see below), whose sum is σ = 288824298. Its totient is φ = 82521224.

The previous prime is 165042439. The next prime is 165042491. The reversal of 165042452 is 254240561.

It can be written as a sum of positive squares in only one way, i.e., 96550276 + 68492176 = 9826^2 + 8276^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 20630303 + ... + 20630310.

It is an arithmetic number, because the mean of its divisors is an integer number (48137383).

Almost surely, 2^165042452 is an apocalyptic number.

It is an amenable number.

165042452 is a deficient number, since it is larger than the sum of its proper divisors (123781846).

165042452 is a wasteful number, since it uses less digits than its factorization.

165042452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41260617 (or 41260615 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 165042452 is about 12846.8849142506. The cubic root of 165042452 is about 548.5276897972.

The spelling of 165042452 in words is "one hundred sixty-five million, forty-two thousand, four hundred fifty-two".