42531241 has 4 divisors (see below), whose sum is σ = 43680772. Its totient is φ = 41381712.

The previous prime is 42531211. The next prime is 42531277. The reversal of 42531241 is 14213524.

42531241 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 2 ways, for example, as 23425600 + 19105641 = 4840^2 + 4371^2 .

It is a cyclic number.

It is not a de Polignac number, because 42531241 - 2¹⁵ = 42498473 is a prime.

It is a super-2 number, since 2×42531241² = 3617812922000162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42531211) 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, 574710 + ... + 574783.

It is an arithmetic number, because the mean of its divisors is an integer number (10920193).

Almost surely, 2^42531241 is an apocalyptic number.

It is an amenable number.

42531241 is a deficient number, since it is larger than the sum of its proper divisors (1149531).

42531241 is a wasteful number, since it uses less digits than its factorization.

42531241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149530.

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

The square root of 42531241 is about 6521.5980403579. The cubic root of 42531241 is about 349.0620902493.

Adding to 42531241 its reverse (14213524), we get a palindrome (56744765).

The spelling of 42531241 in words is "forty-two million, five hundred thirty-one thousand, two hundred forty-one".