1115372160 has 256 divisors, whose sum is σ = 4515091200. Its totient is φ = 254914560.

The previous prime is 1115372123. The next prime is 1115372171. The reversal of 1115372160 is 612735111.

1115372160 is a `hidden beast` number, since 111 + 537 + 2 + 16 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 116350 + ... + 125570.

It is an arithmetic number, because the mean of its divisors is an integer number (17637075).

Almost surely, 2^1115372160 is an apocalyptic number.

1115372160 is a gapful number since it is divisible by the number (10) 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 1115372160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2257545600).

1115372160 is an abundant number, since it is smaller than the sum of its proper divisors (3399719040).

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

1115372160 is an equidigital number, since it uses as much as digits as its factorization.

1115372160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9256 (or 9238 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1115372160 is about 33397.1879055707. The cubic root of 1115372160 is about 1037.0664867122.

The spelling of 1115372160 in words is "one billion, one hundred fifteen million, three hundred seventy-two thousand, one hundred sixty".