165206125 has 32 divisors (see below), whose sum is σ = 245905920. Its totient is φ = 108345600.

The previous prime is 165206101. The next prime is 165206131. The reversal of 165206125 is 521602561.

It is not a de Polignac number, because 165206125 - 2¹¹ = 165204077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165206093 and 165206102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16021 + ... + 24229.

It is an arithmetic number, because the mean of its divisors is an integer number (7684560).

Almost surely, 2^165206125 is an apocalyptic number.

It is an amenable number.

165206125 is a deficient number, since it is larger than the sum of its proper divisors (80699795).

165206125 is an equidigital number, since it uses as much as digits as its factorization.

165206125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8254 (or 8244 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 165206125 is about 12853.2534791779. The cubic root of 165206125 is about 548.7089553034.

Adding to 165206125 its reverse (521602561), we get a palindrome (686808686).

The spelling of 165206125 in words is "one hundred sixty-five million, two hundred six thousand, one hundred twenty-five".