8120532995 has 32 divisors (see below), whose sum is σ = 10039982400. Its totient is φ = 6303154176.

The previous prime is 8120532989. The next prime is 8120532997. The reversal of 8120532995 is 5992350218.

It is a Cunningham number, because it is equal to 90114²-1.

It is not a de Polignac number, because 8120532995 - 2²⁰ = 8119484419 is a prime.

It is a super-2 number, since 2×8120532995² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8120532997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8740691 + ... + 8741619.

It is an arithmetic number, because the mean of its divisors is an integer number (313749450).

Almost surely, 2^8120532995 is an apocalyptic number.

8120532995 is a deficient number, since it is larger than the sum of its proper divisors (1919449405).

8120532995 is a wasteful number, since it uses less digits than its factorization.

8120532995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367.

The product of its (nonzero) digits is 194400, while the sum is 44.

The square root of 8120532995 is about 90113.9999944515. Note that the first 5 decimals coincide. The cubic root of 8120532995 is about 2009.9943891496.

The spelling of 8120532995 in words is "eight billion, one hundred twenty million, five hundred thirty-two thousand, nine hundred ninety-five".