165542 has 8 divisors (see below), whose sum is σ = 267456. Its totient is φ = 76392.

The previous prime is 165541. The next prime is 165551. The reversal of 165542 is 245561.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3158 + ... + 3209.

It is an arithmetic number, because the mean of its divisors is an integer number (33432).

2¹⁶⁵⁵⁴² is an apocalyptic number.

165542 is a deficient number, since it is larger than the sum of its proper divisors (101914).

165542 is a wasteful number, since it uses less digits than its factorization.

165542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6382.

The product of its digits is 1200, while the sum is 23.

The square root of 165542 is about 406.8685291344. The cubic root of 165542 is about 54.9080557476.

It can be divided in two parts, 165 and 542, that added together give a palindrome (707).

The spelling of 165542 in words is "one hundred sixty-five thousand, five hundred forty-two".