42214145 has 16 divisors (see below), whose sum is σ = 53930448. Its totient is φ = 31610880.

The previous prime is 42214127. The next prime is 42214153. The reversal of 42214145 is 54141224.

It can be written as a sum of positive squares in 8 ways, for example, as 16129 + 42198016 = 127^2 + 6496^2 .

It is not a de Polignac number, because 42214145 - 2⁸ = 42213889 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 42214145.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15485 + ... + 18005.

It is an arithmetic number, because the mean of its divisors is an integer number (3370653).

Almost surely, 2^42214145 is an apocalyptic number.

It is an amenable number.

42214145 is a deficient number, since it is larger than the sum of its proper divisors (11716303).

42214145 is a wasteful number, since it uses less digits than its factorization.

42214145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740.

The product of its digits is 1280, while the sum is 23.

The square root of 42214145 is about 6497.2413376756. The cubic root of 42214145 is about 348.1924360655.

Adding to 42214145 its reverse (54141224), we get a palindrome (96355369).

The spelling of 42214145 in words is "forty-two million, two hundred fourteen thousand, one hundred forty-five".