165104025 has 12 divisors (see below), whose sum is σ = 272972112. Its totient is φ = 88055440.

The previous prime is 165104011. The next prime is 165104041. The reversal of 165104025 is 520401561.

It is not a de Polignac number, because 165104025 - 2⁹ = 165103513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165103986 and 165104004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1100619 + ... + 1100768.

It is an arithmetic number, because the mean of its divisors is an integer number (22747676).

Almost surely, 2^165104025 is an apocalyptic number.

165104025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165104025 is a deficient number, since it is larger than the sum of its proper divisors (107868087).

165104025 is a wasteful number, since it uses less digits than its factorization.

165104025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201400 (or 2201395 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 165104025 is about 12849.2811082955. The cubic root of 165104025 is about 548.5958950696.

Adding to 165104025 its reverse (520401561), we get a palindrome (685505586).

The spelling of 165104025 in words is "one hundred sixty-five million, one hundred four thousand, twenty-five".