7196581121 has 8 divisors (see below), whose sum is σ = 7210428480. Its totient is φ = 7182747792.

The previous prime is 7196581103. The next prime is 7196581127. The reversal of 7196581121 is 1211856917.

It is a happy number.

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 7196581121 - 2³⁰ = 6122839297 is a prime.

It is a super-2 number, since 2×7196581121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7196581127) 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, 1791311 + ... + 1795323.

It is an arithmetic number, because the mean of its divisors is an integer number (901303560).

Almost surely, 2^7196581121 is an apocalyptic number.

It is an amenable number.

7196581121 is a deficient number, since it is larger than the sum of its proper divisors (13847359).

7196581121 is a wasteful number, since it uses less digits than its factorization.

7196581121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7015.

The product of its digits is 30240, while the sum is 41.

The square root of 7196581121 is about 84832.6654125638. The cubic root of 7196581121 is about 1930.6730827308.

The spelling of 7196581121 in words is "seven billion, one hundred ninety-six million, five hundred eighty-one thousand, one hundred twenty-one".