8121447241 has 8 divisors (see below), whose sum is σ = 8146713344. Its totient is φ = 8096200560.

The previous prime is 8121447233. The next prime is 8121447253. The reversal of 8121447241 is 1427441218.

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 8121447241 - 2³ = 8121447233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8121447197 and 8121447206.

It is not an unprimeable number, because it can be changed into a prime (8121447541) 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, 1678696 + ... + 1683526.

It is an arithmetic number, because the mean of its divisors is an integer number (1018339168).

Almost surely, 2^8121447241 is an apocalyptic number.

It is an amenable number.

8121447241 is a deficient number, since it is larger than the sum of its proper divisors (25266103).

8121447241 is a wasteful number, since it uses less digits than its factorization.

8121447241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9711.

The product of its digits is 14336, while the sum is 34.

The square root of 8121447241 is about 90119.0725706828. The cubic root of 8121447241 is about 2010.0698177113.

Adding to 8121447241 its reverse (1427441218), we get a palindrome (9548888459).

The spelling of 8121447241 in words is "eight billion, one hundred twenty-one million, four hundred forty-seven thousand, two hundred forty-one".