8117129146 has 8 divisors (see below), whose sum is σ = 13915078560. Its totient is φ = 3478769628.

The previous prime is 8117129129. The next prime is 8117129147. The reversal of 8117129146 is 6419217118.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 8117129099 and 8117129108.

It is not an unprimeable number, because it can be changed into a prime (8117129147) 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, 289897456 + ... + 289897483.

It is an arithmetic number, because the mean of its divisors is an integer number (1739384820).

Almost surely, 2^8117129146 is an apocalyptic number.

8117129146 is a deficient number, since it is larger than the sum of its proper divisors (5797949414).

8117129146 is a wasteful number, since it uses less digits than its factorization.

8117129146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579794948.

The product of its digits is 24192, while the sum is 40.

The square root of 8117129146 is about 90095.1116653950. Note that the first 3 decimals coincide. The cubic root of 8117129146 is about 2009.7135096574.

The spelling of 8117129146 in words is "eight billion, one hundred seventeen million, one hundred twenty-nine thousand, one hundred forty-six".