42135241 has 4 divisors (see below), whose sum is σ = 43967232. Its totient is φ = 40303252.

The previous prime is 42135239. The next prime is 42135251. The reversal of 42135241 is 14253124.

42135241 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 42135241 - 2¹ = 42135239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42135211) 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, 915961 + ... + 916006.

It is an arithmetic number, because the mean of its divisors is an integer number (10991808).

Almost surely, 2^42135241 is an apocalyptic number.

It is an amenable number.

42135241 is a deficient number, since it is larger than the sum of its proper divisors (1831991).

42135241 is a wasteful number, since it uses less digits than its factorization.

42135241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831990.

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

The square root of 42135241 is about 6491.1663820919. The cubic root of 42135241 is about 347.9753610292.

Adding to 42135241 its reverse (14253124), we get a palindrome (56388365).

The spelling of 42135241 in words is "forty-two million, one hundred thirty-five thousand, two hundred forty-one".