42146 has 8 divisors (see below), whose sum is σ = 68124. Its totient is φ = 19440.

The previous prime is 42139. The next prime is 42157. The reversal of 42146 is 64124.

It can be written as a sum of positive squares in 2 ways, for example, as 42025 + 121 = 205^2 + 11^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785 + ... + 836.

2⁴²¹⁴⁶ is an apocalyptic number.

42146 is a deficient number, since it is larger than the sum of its proper divisors (25978).

42146 is a wasteful number, since it uses less digits than its factorization.

42146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1636.

The product of its digits is 192, while the sum is 17.

The square root of 42146 is about 205.2949098249. The cubic root of 42146 is about 34.8004976368.

The spelling of 42146 in words is "forty-two thousand, one hundred forty-six".