1186961152 has 72 divisors (see below), whose sum is σ = 2614071600. Its totient is φ = 534405120.

The previous prime is 1186961137. The next prime is 1186961197. The reversal of 1186961152 is 2511696811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132099 + ... + 140797.

It is an arithmetic number, because the mean of its divisors is an integer number (36306550).

Almost surely, 2^1186961152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1186961152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307035800).

1186961152 is an abundant number, since it is smaller than the sum of its proper divisors (1427110448).

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

1186961152 is an equidigital number, since it uses as much as digits as its factorization.

1186961152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8769 (or 8755 counting only the distinct ones).

The product of its digits is 25920, while the sum is 40.

The square root of 1186961152 is about 34452.3025645602. The cubic root of 1186961152 is about 1058.7956988434.

The spelling of 1186961152 in words is "one billion, one hundred eighty-six million, nine hundred sixty-one thousand, one hundred fifty-two".