8121434162 has 24 divisors (see below), whose sum is σ = 12342379140. Its totient is φ = 4007802240.

The previous prime is 8121434147. The next prime is 8121434183. The reversal of 8121434162 is 2614341218.

It is a Cunningham number, because it is equal to 90119²+1.

It can be written as a sum of positive squares in 6 ways, for example, as 1 + 8121434161 = 1^2 + 90119^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25946918 + ... + 25947230.

Almost surely, 2^8121434162 is an apocalyptic number.

8121434162 is a deficient number, since it is larger than the sum of its proper divisors (4220944978).

8121434162 is a wasteful number, since it uses less digits than its factorization.

8121434162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038 (or 725 counting only the distinct ones).

The product of its digits is 9216, while the sum is 32.

The square root of 8121434162 is about 90119.0000055482. Note that the first 5 decimals coincide. The cubic root of 8121434162 is about 2010.0687386870.

The spelling of 8121434162 in words is "eight billion, one hundred twenty-one million, four hundred thirty-four thousand, one hundred sixty-two".