42781141 has 16 divisors (see below), whose sum is σ = 48731200. Its totient is φ = 37231488.

The previous prime is 42781099. The next prime is 42781159. The reversal of 42781141 is 14118724.

42781141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42781141 - 2¹³ = 42772949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42781181) 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 15 ways as a sum of consecutive naturals, for example, 93385 + ... + 93841.

It is an arithmetic number, because the mean of its divisors is an integer number (3045700).

Almost surely, 2^42781141 is an apocalyptic number.

It is an amenable number.

42781141 is a deficient number, since it is larger than the sum of its proper divisors (5950059).

42781141 is a wasteful number, since it uses less digits than its factorization.

42781141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868.

The product of its digits is 1792, while the sum is 28.

The square root of 42781141 is about 6540.7293935768. The cubic root of 42781141 is about 349.7444147665.

Adding to 42781141 its reverse (14118724), we get a palindrome (56899865).

The spelling of 42781141 in words is "forty-two million, seven hundred eighty-one thousand, one hundred forty-one".