163245 has 8 divisors (see below), whose sum is σ = 261216. Its totient is φ = 87056.

The previous prime is 163243. The next prime is 163249. The reversal of 163245 is 542361.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163245 - 2¹ = 163243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5427 + ... + 5456.

It is an arithmetic number, because the mean of its divisors is an integer number (32652).

2¹⁶³²⁴⁵ is an apocalyptic number.

163245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163245 is a deficient number, since it is larger than the sum of its proper divisors (97971).

163245 is a wasteful number, since it uses less digits than its factorization.

163245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10891.

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

The square root of 163245 is about 404.0358894950. The cubic root of 163245 is about 54.6529106442.

The spelling of 163245 in words is "one hundred sixty-three thousand, two hundred forty-five".