8147007121 has 8 divisors (see below), whose sum is σ = 9410446944. Its totient is φ = 6970701120.

The previous prime is 8147007103. The next prime is 8147007139. The reversal of 8147007121 is 1217007418.

It is an interprime number because it is at equal distance from previous prime (8147007103) and next prime (8147007139).

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

It is a cyclic number.

It is not a de Polignac number, because 8147007121 - 2⁷ = 8147006993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8147007151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21783255 + ... + 21783628.

It is an arithmetic number, because the mean of its divisors is an integer number (1176305868).

Almost surely, 2^8147007121 is an apocalyptic number.

It is an amenable number.

8147007121 is a deficient number, since it is larger than the sum of its proper divisors (1263439823).

8147007121 is a wasteful number, since it uses less digits than its factorization.

8147007121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43566911.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 8147007121 is about 90260.7728805820. The cubic root of 8147007121 is about 2012.1763116925.

The spelling of 8147007121 in words is "eight billion, one hundred forty-seven million, seven thousand, one hundred twenty-one".