42112453 has 8 divisors (see below), whose sum is σ = 43588440. Its totient is φ = 40657920.

The previous prime is 42112409. The next prime is 42112463. The reversal of 42112453 is 35421124.

It can be written as a sum of positive squares in 4 ways, for example, as 613089 + 41499364 = 783^2 + 6442^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42112453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42112403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318 + ... + 9271.

It is an arithmetic number, because the mean of its divisors is an integer number (5448555).

Almost surely, 2^42112453 is an apocalyptic number.

It is an amenable number.

42112453 is a deficient number, since it is larger than the sum of its proper divisors (1475987).

42112453 is a wasteful number, since it uses less digits than its factorization.

42112453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10727.

The product of its digits is 960, while the sum is 22.

The square root of 42112453 is about 6489.4108361237. The cubic root of 42112453 is about 347.9126178851.

Adding to 42112453 its reverse (35421124), we get a palindrome (77533577).

The spelling of 42112453 in words is "forty-two million, one hundred twelve thousand, four hundred fifty-three".