69117121 has 8 divisors (see below), whose sum is σ = 75706920. Its totient is φ = 62807808.

The previous prime is 69117109. The next prime is 69117149. The reversal of 69117121 is 12171196.

It can be written as a sum of positive squares in 4 ways, for example, as 30924721 + 38192400 = 5561^2 + 6180^2 .

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 69117121 - 2⁵ = 69117089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 69117121.

It is not an unprimeable number, because it can be changed into a prime (69117101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69606 + ... + 70591.

It is an arithmetic number, because the mean of its divisors is an integer number (9463365).

Almost surely, 2^69117121 is an apocalyptic number.

It is an amenable number.

69117121 is a deficient number, since it is larger than the sum of its proper divisors (6589799).

69117121 is a wasteful number, since it uses less digits than its factorization.

69117121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140243.

The product of its digits is 756, while the sum is 28.

The square root of 69117121 is about 8313.6707295875. The cubic root of 69117121 is about 410.3885291826.

The spelling of 69117121 in words is "sixty-nine million, one hundred seventeen thousand, one hundred twenty-one".