79133189 has 2 divisors, whose sum is σ = 79133190. Its totient is φ = 79133188.

The previous prime is 79133183. The next prime is 79133207. The reversal of 79133189 is 98133197.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60062500 + 19070689 = 7750^2 + 4367^2 .

It is a cyclic number.

It is not a de Polignac number, because 79133189 - 2²⁰ = 78084613 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79133183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39566594 + 39566595.

It is an arithmetic number, because the mean of its divisors is an integer number (39566595).

Almost surely, 2^79133189 is an apocalyptic number.

It is an amenable number.

79133189 is a deficient number, since it is larger than the sum of its proper divisors (1).

79133189 is an equidigital number, since it uses as much as digits as its factorization.

79133189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 41.

The square root of 79133189 is about 8895.6837286405. The cubic root of 79133189 is about 429.3250434956.

The spelling of 79133189 in words is "seventy-nine million, one hundred thirty-three thousand, one hundred eighty-nine".