42141065 has 4 divisors (see below), whose sum is σ = 50569284. Its totient is φ = 33712848.

The previous prime is 42141053. The next prime is 42141067. The reversal of 42141065 is 56014124.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27426169 + 14714896 = 5237^2 + 3836^2 .

It is a cyclic number.

It is not a de Polignac number, because 42141065 - 2¹⁴ = 42124681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42141065.

It is not an unprimeable number, because it can be changed into a prime (42141067) 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, 4214102 + ... + 4214111.

It is an arithmetic number, because the mean of its divisors is an integer number (12642321).

Almost surely, 2^42141065 is an apocalyptic number.

It is an amenable number.

42141065 is a deficient number, since it is larger than the sum of its proper divisors (8428219).

42141065 is an equidigital number, since it uses as much as digits as its factorization.

42141065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8428218.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 42141065 is about 6491.6149762598. The cubic root of 42141065 is about 347.9913928597.

Adding to 42141065 its reverse (56014124), we get a palindrome (98155189).

The spelling of 42141065 in words is "forty-two million, one hundred forty-one thousand, sixty-five".