163485 has 32 divisors (see below), whose sum is σ = 334080. Its totient is φ = 74304.

The previous prime is 163483. The next prime is 163487. The reversal of 163485 is 584361.

It is an interprime number because it is at equal distance from previous prime (163483) and next prime (163487).

It is not a de Polignac number, because 163485 - 2¹ = 163483 is a prime.

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

163485 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 859 + ... + 1031.

It is an arithmetic number, because the mean of its divisors is an integer number (10440).

2¹⁶³⁴⁸⁵ is an apocalyptic number.

163485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163485 is an abundant number, since it is smaller than the sum of its proper divisors (170595).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

163485 is a wasteful number, since it uses less digits than its factorization.

163485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 188 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 163485 is about 404.3327837314. The cubic root of 163485 is about 54.6796807868.

The spelling of 163485 in words is "one hundred sixty-three thousand, four hundred eighty-five".