8121107 has 4 divisors (see below), whose sum is σ = 8201616. Its totient is φ = 8040600.

The previous prime is 8121103. The next prime is 8121119. The reversal of 8121107 is 7011218.

8121107 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8121107 - 2² = 8121103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8121103) 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, 40103 + ... + 40304.

It is an arithmetic number, because the mean of its divisors is an integer number (2050404).

Almost surely, 2^8121107 is an apocalyptic number.

8121107 is a deficient number, since it is larger than the sum of its proper divisors (80509).

8121107 is a wasteful number, since it uses less digits than its factorization.

8121107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80508.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 8121107 is about 2849.7556035562. The cubic root of 8121107 is about 201.0041747274.

It can be divided in two parts, 8121 and 107, that added together give a palindrome (8228).

The spelling of 8121107 in words is "eight million, one hundred twenty-one thousand, one hundred seven".