165230625 has 40 divisors (see below), whose sum is σ = 314649280. Its totient is φ = 75528000.

The previous prime is 165230617. The next prime is 165230629. The reversal of 165230625 is 526032561.

It is not a de Polignac number, because 165230625 - 2³ = 165230617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165230592 and 165230601.

It is not an unprimeable number, because it can be changed into a prime (165230629) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 6831 + ... + 19419.

It is an arithmetic number, because the mean of its divisors is an integer number (7866232).

Almost surely, 2^165230625 is an apocalyptic number.

165230625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

165230625 is a deficient number, since it is larger than the sum of its proper divisors (149418655).

165230625 is an equidigital number, since it uses as much as digits as its factorization.

165230625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12619 (or 12604 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 165230625 is about 12854.2065099328. The cubic root of 165230625 is about 548.7360783997.

The spelling of 165230625 in words is "one hundred sixty-five million, two hundred thirty thousand, six hundred twenty-five".