7199121 has 16 divisors (see below), whose sum is σ = 9892800. Its totient is φ = 4654848.

The previous prime is 7199113. The next prime is 7199147. The reversal of 7199121 is 1219917.

It is not a de Polignac number, because 7199121 - 2³ = 7199113 is a prime.

It is a super-3 number, since 3×7199121³ (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7199111) 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 15 ways as a sum of consecutive naturals, for example, 15525 + ... + 15981.

It is an arithmetic number, because the mean of its divisors is an integer number (618300).

Almost surely, 2^7199121 is an apocalyptic number.

It is an amenable number.

7199121 is a deficient number, since it is larger than the sum of its proper divisors (2693679).

7199121 is a wasteful number, since it uses less digits than its factorization.

7199121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608.

The product of its digits is 1134, while the sum is 30.

The square root of 7199121 is about 2683.1177760210. The cubic root of 7199121 is about 193.0900185905.

The spelling of 7199121 in words is "seven million, one hundred ninety-nine thousand, one hundred twenty-one".