7115121369 has 48 divisors (see below), whose sum is σ = 10978561152. Its totient is φ = 4430409984.

The previous prime is 7115121361. The next prime is 7115121437. The reversal of 7115121369 is 9631215117.

It is a happy number.

7115121369 is a `hidden beast` number, since 7 + 1 + 1 + 512 + 136 + 9 = 666.

It is not a de Polignac number, because 7115121369 - 2³ = 7115121361 is a prime.

It is a super-2 number, since 2×7115121369² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7115121361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2488989 + ... + 2491845.

It is an arithmetic number, because the mean of its divisors is an integer number (228720024).

Almost surely, 2^7115121369 is an apocalyptic number.

It is an amenable number.

7115121369 is a deficient number, since it is larger than the sum of its proper divisors (3863439783).

7115121369 is a wasteful number, since it uses less digits than its factorization.

7115121369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166 (or 3163 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 7115121369 is about 84351.1788240093. The cubic root of 7115121369 is about 1923.3608461900.

The spelling of 7115121369 in words is "seven billion, one hundred fifteen million, one hundred twenty-one thousand, three hundred sixty-nine".