1187130168 has 80 divisors (see below), whose sum is σ = 3800087280. Its totient is φ = 339178752.

The previous prime is 1187130143. The next prime is 1187130169. The reversal of 1187130168 is 8610317811.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1187130169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 126321 + ... + 135392.

It is an arithmetic number, because the mean of its divisors is an integer number (47501091).

Almost surely, 2^1187130168 is an apocalyptic number.

1187130168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1187130168 is an abundant number, since it is smaller than the sum of its proper divisors (2612957112).

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

1187130168 is a wasteful number, since it uses less digits than its factorization.

1187130168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261738 (or 261725 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 1187130168 is about 34454.7553757098. The cubic root of 1187130168 is about 1058.8459517997.

Adding to 1187130168 its reverse (8610317811), we get a palindrome (9797447979).

The spelling of 1187130168 in words is "one billion, one hundred eighty-seven million, one hundred thirty thousand, one hundred sixty-eight".