8121069 has 12 divisors (see below), whose sum is σ = 12796992. Its totient is φ = 4921800.

The previous prime is 8121067. The next prime is 8121079. The reversal of 8121069 is 9601218.

It is not a de Polignac number, because 8121069 - 2¹ = 8121067 is a prime.

It is a super-2 number, since 2×8121069² = 131903523405522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40917 + ... + 41114.

It is an arithmetic number, because the mean of its divisors is an integer number (1066416).

Almost surely, 2^8121069 is an apocalyptic number.

It is an amenable number.

8121069 is a deficient number, since it is larger than the sum of its proper divisors (4675923).

8121069 is a wasteful number, since it uses less digits than its factorization.

8121069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82048 (or 82045 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 8121069 is about 2849.7489363100. The cubic root of 8121069 is about 201.0038612164.

It can be divided in two parts, 812 and 1069, that added together give a palindrome (1881).

The spelling of 8121069 in words is "eight million, one hundred twenty-one thousand, sixty-nine".