42982145 has 8 divisors (see below), whose sum is σ = 52836840. Its totient is φ = 33546880.

The previous prime is 42982141. The next prime is 42982153. The reversal of 42982145 is 54128924.

42982145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4032064 + 38950081 = 2008^2 + 6241^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42982145 - 2² = 42982141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42982141) 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 7 ways as a sum of consecutive naturals, for example, 104630 + ... + 105039.

It is an arithmetic number, because the mean of its divisors is an integer number (6604605).

Almost surely, 2^42982145 is an apocalyptic number.

It is an amenable number.

42982145 is a deficient number, since it is larger than the sum of its proper divisors (9854695).

42982145 is a wasteful number, since it uses less digits than its factorization.

42982145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209715.

The product of its digits is 23040, while the sum is 35.

The square root of 42982145 is about 6556.0769519584. The cubic root of 42982145 is about 350.2913084942.

The spelling of 42982145 in words is "forty-two million, nine hundred eighty-two thousand, one hundred forty-five".