42661141 has 4 divisors (see below), whose sum is σ = 42702784. Its totient is φ = 42619500.

The previous prime is 42661133. The next prime is 42661147. The reversal of 42661141 is 14116624.

42661141 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 42661141 - 2³ = 42661133 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 (42661147) 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, 19245 + ... + 21346.

It is an arithmetic number, because the mean of its divisors is an integer number (10675696).

Almost surely, 2^42661141 is an apocalyptic number.

It is an amenable number.

42661141 is a deficient number, since it is larger than the sum of its proper divisors (41643).

42661141 is a wasteful number, since it uses less digits than its factorization.

42661141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41642.

The product of its digits is 1152, while the sum is 25.

The square root of 42661141 is about 6531.5496629820. The cubic root of 42661141 is about 349.4171005106.

Adding to 42661141 its reverse (14116624), we get a palindrome (56777765).

The spelling of 42661141 in words is "forty-two million, six hundred sixty-one thousand, one hundred forty-one".