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45242 = 222621

45242 has 4 divisors (see below), whose sum is σ = 67866. Its totient is φ = 22620.

The previous prime is 45233. The next prime is 45247. The reversal of 45242 is 24254.

Adding to 45242 its reverse (24254), we get a palindrome (69496).

It can be divided in two parts, 452 and 42, that added together give a palindrome (494).

45242 is nontrivially palindromic in base 12.

45242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25921 + 19321 = 161^2 + 139^2 .

45242 is a nontrivial repdigit in base 12.

It is a plaindrome in base 12.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 45242.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 45242.

It is not an unprimeable number, because it can be changed into a prime (45247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11309 + ... + 11312.

245242 is an apocalyptic number.

45242 is a deficient number, since it is larger than the sum of its proper divisors (22624).

45242 is a wasteful number, since it uses less digits than its factorization.

45242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22623.

The product of its digits is 320, while the sum is 17.

The square root of 45242 is about 212.7016690108. The cubic root of 45242 is about 35.6325796943.

The spelling of 45242 in words is "forty-five thousand, two hundred forty-two".

Divisors: 1 2 22621 45242