169425 has 24 divisors (see below), whose sum is σ = 312480. Its totient is φ = 90000.

The previous prime is 169409. The next prime is 169427. The reversal of 169425 is 524961.

169425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 169425 - 2⁴ = 169409 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

Its product of digits (2160) is a multiple of the sum of its prime factors (270).

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 169425.

It is not an unprimeable number, because it can be changed into a prime (169427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 550 + ... + 800.

It is an arithmetic number, because the mean of its divisors is an integer number (13020).

2¹⁶⁹⁴²⁵ is an apocalyptic number.

169425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

169425 is a deficient number, since it is larger than the sum of its proper divisors (143055).

169425 is a wasteful number, since it uses less digits than its factorization.

169425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 259 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 169425 is about 411.6126820204. The cubic root of 169425 is about 55.3340550865.

The spelling of 169425 in words is "one hundred sixty-nine thousand, four hundred twenty-five".