7166189 has 4 divisors (see below), whose sum is σ = 7202400. Its totient is φ = 7129980.

The previous prime is 7166171. The next prime is 7166209. The reversal of 7166189 is 9816617.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9816617 = 269 ⋅36493.

It is a cyclic number.

It is not a de Polignac number, because 7166189 - 2⁸ = 7165933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7166149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17807 + ... + 18204.

It is an arithmetic number, because the mean of its divisors is an integer number (1800600).

Almost surely, 2^7166189 is an apocalyptic number.

It is an amenable number.

7166189 is a deficient number, since it is larger than the sum of its proper divisors (36211).

7166189 is a wasteful number, since it uses less digits than its factorization.

7166189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36210.

The product of its digits is 18144, while the sum is 38.

The square root of 7166189 is about 2676.9738511984. The cubic root of 7166189 is about 192.7951417915.

The spelling of 7166189 in words is "seven million, one hundred sixty-six thousand, one hundred eighty-nine".