165031125 has 32 divisors (see below), whose sum is σ = 313847040. Its totient is φ = 75441600.

The previous prime is 165031103. The next prime is 165031183. The reversal of 165031125 is 521130561.

It is not a de Polignac number, because 165031125 - 2¹² = 165027029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 165031095 and 165031104.

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, 28810 + ... + 34059.

It is an arithmetic number, because the mean of its divisors is an integer number (9807720).

Almost surely, 2^165031125 is an apocalyptic number.

165031125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165031125 is a deficient number, since it is larger than the sum of its proper divisors (148815915).

165031125 is an equidigital number, since it uses as much as digits as its factorization.

165031125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62894 (or 62884 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 165031125 is about 12846.4440605173. Note that the first 3 decimals coincide. The cubic root of 165031125 is about 548.5151408737.

Adding to 165031125 its reverse (521130561), we get a palindrome (686161686).

The spelling of 165031125 in words is "one hundred sixty-five million, thirty-one thousand, one hundred twenty-five".