1189667148 has 12 divisors (see below), whose sum is σ = 2775890040. Its totient is φ = 396555712.

The previous prime is 1189667117. The next prime is 1189667153. The reversal of 1189667148 is 8417669811.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1189667148.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49569453 + ... + 49569476.

It is an arithmetic number, because the mean of its divisors is an integer number (231324170).

Almost surely, 2^1189667148 is an apocalyptic number.

It is an amenable number.

1189667148 is an abundant number, since it is smaller than the sum of its proper divisors (1586222892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1189667148 is a wasteful number, since it uses less digits than its factorization.

1189667148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99138936 (or 99138934 counting only the distinct ones).

The product of its digits is 580608, while the sum is 51.

The square root of 1189667148 is about 34491.5518351958. The cubic root of 1189667148 is about 1059.5996910163.

The spelling of 1189667148 in words is "one billion, one hundred eighty-nine million, six hundred sixty-seven thousand, one hundred forty-eight".