8142168941 has 4 divisors (see below), whose sum is σ = 8404819584. Its totient is φ = 7879518300.

The previous prime is 8142168913. The next prime is 8142168949. The reversal of 8142168941 is 1498612418.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8142168941 is a prime.

It is a super-2 number, since 2×8142168941² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8142168892 and 8142168901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8142168949) 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, 131325275 + ... + 131325336.

It is an arithmetic number, because the mean of its divisors is an integer number (2101204896).

Almost surely, 2^8142168941 is an apocalyptic number.

It is an amenable number.

8142168941 is a deficient number, since it is larger than the sum of its proper divisors (262650643).

8142168941 is a wasteful number, since it uses less digits than its factorization.

8142168941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262650642.

The product of its digits is 110592, while the sum is 44.

The square root of 8142168941 is about 90233.9677782153. The cubic root of 8142168941 is about 2011.7779159460. Note that the first 3 decimals are identical.

The spelling of 8142168941 in words is "eight billion, one hundred forty-two million, one hundred sixty-eight thousand, nine hundred forty-one".