42361 has 4 divisors (see below), whose sum is σ = 46224. Its totient is φ = 38500.

The previous prime is 42359. The next prime is 42373. The reversal of 42361 is 16324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 42361 - 2¹ = 42359 is a prime.

It is a Duffinian number.

42361 is a lucky number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (42331) 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, 1915 + ... + 1936.

It is an arithmetic number, because the mean of its divisors is an integer number (11556).

2⁴²³⁶¹ is an apocalyptic number.

It is an amenable number.

42361 is a deficient number, since it is larger than the sum of its proper divisors (3863).

42361 is a wasteful number, since it uses less digits than its factorization.

42361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862.

The product of its digits is 144, while the sum is 16.

The square root of 42361 is about 205.8178806615. The cubic root of 42361 is about 34.8595733899.

Multiplying 42361 by its sum of digits (16), we get a palindrome (677776).

Adding to 42361 its reverse (16324), we get a palindrome (58685).

It can be divided in two parts, 423 and 61, that added together give a palindrome (484).

The spelling of 42361 in words is "forty-two thousand, three hundred sixty-one".