42113541 has 4 divisors (see below), whose sum is σ = 56151392. Its totient is φ = 28075692.

The previous prime is 42113527. The next prime is 42113549. The reversal of 42113541 is 14531124.

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 not a de Polignac number, because 42113541 - 2¹¹ = 42111493 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 (42113549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7018921 + ... + 7018926.

It is an arithmetic number, because the mean of its divisors is an integer number (14037848).

Almost surely, 2^42113541 is an apocalyptic number.

It is an amenable number.

42113541 is a deficient number, since it is larger than the sum of its proper divisors (14037851).

42113541 is a wasteful number, since it uses less digits than its factorization.

42113541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14037850.

The product of its digits is 480, while the sum is 21.

The square root of 42113541 is about 6489.4946644558. The cubic root of 42113541 is about 347.9156140350.

Adding to 42113541 its reverse (14531124), we get a palindrome (56644665).

The spelling of 42113541 in words is "forty-two million, one hundred thirteen thousand, five hundred forty-one".