1170423189 has 40 divisors (see below), whose sum is σ = 1894332440. Its totient is φ = 720150912.

The previous prime is 1170423181. The next prime is 1170423203. The reversal of 1170423189 is 9813240711.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 67519089 + 1102904100 = 8217^2 + 33210^2 .

It is not a de Polignac number, because 1170423189 - 2³ = 1170423181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1170423181) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 174669 + ... + 181245.

It is an arithmetic number, because the mean of its divisors is an integer number (47358311).

Almost surely, 2^1170423189 is an apocalyptic number.

It is an amenable number.

1170423189 is a deficient number, since it is larger than the sum of its proper divisors (723909251).

1170423189 is an frugal number, since it uses more digits than its factorization.

1170423189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6628 (or 6593 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 1170423189 is about 34211.4482154731. The cubic root of 1170423189 is about 1053.8552722172.

The spelling of 1170423189 in words is "one billion, one hundred seventy million, four hundred twenty-three thousand, one hundred eighty-nine".