42154 has 8 divisors (see below), whose sum is σ = 72288. Its totient is φ = 18060.

The previous prime is 42139. The next prime is 42157. The reversal of 42154 is 45124.

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

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1492 + ... + 1519.

It is an arithmetic number, because the mean of its divisors is an integer number (9036).

2⁴²¹⁵⁴ is an apocalyptic number.

42154 is a deficient number, since it is larger than the sum of its proper divisors (30134).

42154 is a wasteful number, since it uses less digits than its factorization.

42154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3020.

The product of its digits is 160, while the sum is 16.

The square root of 42154 is about 205.3143930659. The cubic root of 42154 is about 34.8026993987.

Adding to 42154 its reverse (45124), we get a palindrome (87278).

It can be divided in two parts, 42 and 154, that added together give a square (196 = 14²).

The spelling of 42154 in words is "forty-two thousand, one hundred fifty-four".