8442856141 has 4 divisors (see below), whose sum is σ = 8457489052. Its totient is φ = 8428223232.

The previous prime is 8442856117. The next prime is 8442856153. The reversal of 8442856141 is 1416582448.

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 8385248041 + 57608100 = 91571^2 + 7590^2 .

It is a cyclic number.

It is not a de Polignac number, because 8442856141 - 2¹³ = 8442847949 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 (8442856181) 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, 7315590 + ... + 7316743.

It is an arithmetic number, because the mean of its divisors is an integer number (2114372263).

Almost surely, 2^8442856141 is an apocalyptic number.

It is an amenable number.

8442856141 is a deficient number, since it is larger than the sum of its proper divisors (14632911).

8442856141 is a wasteful number, since it uses less digits than its factorization.

8442856141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14632910.

The product of its digits is 245760, while the sum is 43.

The square root of 8442856141 is about 91885.0158676593. The cubic root of 8442856141 is about 2036.2439006877.

The spelling of 8442856141 in words is "eight billion, four hundred forty-two million, eight hundred fifty-six thousand, one hundred forty-one".