163542 has 16 divisors (see below), whose sum is σ = 331632. Its totient is φ = 53760.

The previous prime is 163517. The next prime is 163543. The reversal of 163542 is 245361.

It is a happy number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163543) 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, 442 + ... + 722.

It is an arithmetic number, because the mean of its divisors is an integer number (20727).

2¹⁶³⁵⁴² is an apocalyptic number.

163542 is an abundant number, since it is smaller than the sum of its proper divisors (168090).

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

163542 is a wasteful number, since it uses less digits than its factorization.

163542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383.

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

The square root of 163542 is about 404.4032640818. The cubic root of 163542 is about 54.6860348451.

The spelling of 163542 in words is "one hundred sixty-three thousand, five hundred forty-two".