163425 has 12 divisors (see below), whose sum is σ = 270320. Its totient is φ = 87120.

The previous prime is 163417. The next prime is 163433. The reversal of 163425 is 524361.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (163417) and next prime (163433).

It is not a de Polignac number, because 163425 - 2³ = 163417 is a prime.

163425 is a lucky number.

It is a zygodrome in base 6.

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, 1015 + ... + 1164.

2¹⁶³⁴²⁵ is an apocalyptic number.

163425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163425 is a deficient number, since it is larger than the sum of its proper divisors (106895).

163425 is a wasteful number, since it uses less digits than its factorization.

163425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192 (or 2187 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 163425 is about 404.2585806139. The cubic root of 163425 is about 54.6729907087.

Adding to 163425 its reverse (524361), we get a palindrome (687786).

The spelling of 163425 in words is "one hundred sixty-three thousand, four hundred twenty-five".