442105141 has 4 divisors (see below), whose sum is σ = 442762732. Its totient is φ = 441447552.

The previous prime is 442105127. The next prime is 442105163. The reversal of 442105141 is 141501244.

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 52200625 + 389904516 = 7225^2 + 19746^2 .

It is a cyclic number.

It is not a de Polignac number, because 442105141 - 2⁵ = 442105109 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 (442105441) 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, 327786 + ... + 329131.

It is an arithmetic number, because the mean of its divisors is an integer number (110690683).

Almost surely, 2^442105141 is an apocalyptic number.

It is an amenable number.

442105141 is a deficient number, since it is larger than the sum of its proper divisors (657591).

442105141 is an equidigital number, since it uses as much as digits as its factorization.

442105141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657590.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 442105141 is about 21026.2964166303. The cubic root of 442105141 is about 761.8015553905.

Adding to 442105141 its reverse (141501244), we get a palindrome (583606385).

The spelling of 442105141 in words is "four hundred forty-two million, one hundred five thousand, one hundred forty-one".