7189161 has 8 divisors (see below), whose sum is σ = 10954944. Its totient is φ = 4108080.

The previous prime is 7189159. The next prime is 7189207. The reversal of 7189161 is 1619817.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7189161 - 2¹ = 7189159 is a prime.

7189161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7189151) 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 7 ways as a sum of consecutive naturals, for example, 171150 + ... + 171191.

It is an arithmetic number, because the mean of its divisors is an integer number (1369368).

Almost surely, 2^7189161 is an apocalyptic number.

It is an amenable number.

7189161 is a deficient number, since it is larger than the sum of its proper divisors (3765783).

7189161 is a wasteful number, since it uses less digits than its factorization.

7189161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342351.

The product of its digits is 3024, while the sum is 33.

The square root of 7189161 is about 2681.2610838932. The cubic root of 7189161 is about 193.0009306693. Note that the first 3 decimals are identical.

The spelling of 7189161 in words is "seven million, one hundred eighty-nine thousand, one hundred sixty-one".