42147253 has 4 divisors (see below), whose sum is σ = 42161760. Its totient is φ = 42132748.

The previous prime is 42147251. The next prime is 42147269. The reversal of 42147253 is 35274124.

42147253 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42147253 - 2¹ = 42147251 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 (42147251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225 + ... + 9262.

It is an arithmetic number, because the mean of its divisors is an integer number (10540440).

Almost surely, 2^42147253 is an apocalyptic number.

It is an amenable number.

42147253 is a deficient number, since it is larger than the sum of its proper divisors (14507).

42147253 is a wasteful number, since it uses less digits than its factorization.

42147253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14506.

The product of its digits is 6720, while the sum is 28.

The square root of 42147253 is about 6492.0915735994. The cubic root of 42147253 is about 348.0084250614.

It can be divided in two parts, 421 and 47253, that added together give a palindrome (47674).

The spelling of 42147253 in words is "forty-two million, one hundred forty-seven thousand, two hundred fifty-three".