42011541 has 84 divisors (see below), whose sum is σ = 76807296. Its totient is φ = 22744800.

The previous prime is 42011521. The next prime is 42011549. The reversal of 42011541 is 14511024.

It is not a de Polignac number, because 42011541 - 2⁵ = 42011509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42011549) by changing a digit.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 1355196 + ... + 1355226.

Almost surely, 2^42011541 is an apocalyptic number.

It is an amenable number.

42011541 is a deficient number, since it is larger than the sum of its proper divisors (34795755).

42011541 is a wasteful number, since it uses less digits than its factorization.

42011541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 42011541 is about 6481.6310447294. The cubic root of 42011541 is about 347.6345003216.

Adding to 42011541 its reverse (14511024), we get a palindrome (56522565).

The spelling of 42011541 in words is "forty-two million, eleven thousand, five hundred forty-one".