1171378152 has 256 divisors, whose sum is σ = 3906355200. Its totient is φ = 318193920.

The previous prime is 1171378141. The next prime is 1171378171. The reversal of 1171378152 is 2518731711.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3140238 + ... + 3140610.

It is an arithmetic number, because the mean of its divisors is an integer number (15259200).

Almost surely, 2^1171378152 is an apocalyptic number.

1171378152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1171378152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1953177600).

1171378152 is an abundant number, since it is smaller than the sum of its proper divisors (2734977048).

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

1171378152 is a wasteful number, since it uses less digits than its factorization.

1171378152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 483 counting only the distinct ones).

The product of its digits is 11760, while the sum is 36.

The square root of 1171378152 is about 34225.4021451903. The cubic root of 1171378152 is about 1054.1418122244.

The spelling of 1171378152 in words is "one billion, one hundred seventy-one million, three hundred seventy-eight thousand, one hundred fifty-two".