42453 has 12 divisors (see below), whose sum is σ = 63180.
Its totient is φ = 27456.
The previous prime is 42451. The next prime is 42457. The reversal of 42453 is 35424.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 19044 + 23409 = 138^2 + 153^2
It is not a de Polignac number, because 42453 - 21 = 42451 is a prime.
It is a nialpdrome in base 9.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42453.
It is not an unprimeable number, because it can be changed into a prime (42451) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 433 + ... + 521.
It is an arithmetic number, because the mean of its divisors is an integer number (5265).
242453 is an apocalyptic number.
It is an amenable number.
42453 is a deficient number, since it is larger than the sum of its proper divisors (20727).
42453 is a wasteful number, since it uses less digits than its factorization.
42453 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 148 (or 145 counting only the distinct ones).
The product of its digits is 480, while the sum is 18.
The square root of 42453 is about 206.0412580043.
The cubic root of 42453 is about 34.8847912540.
Adding to 42453 its reverse (35424), we get a palindrome (77877).
The spelling of 42453 in words is "forty-two thousand, four hundred fifty-three".