1159172352 has 216 divisors, whose sum is σ = 3636378200. Its totient is φ = 355110912.

The previous prime is 1159172323. The next prime is 1159172359. The reversal of 1159172352 is 2532719511.

1159172352 is a `hidden beast` number, since 11 + 591 + 7 + 2 + 3 + 52 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 118722816 + 1040449536 = 10896^2 + 32256^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1159172359) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5061774 + ... + 5062002.

Almost surely, 2^1159172352 is an apocalyptic number.

1159172352 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 1159172352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1818189100).

1159172352 is an abundant number, since it is smaller than the sum of its proper divisors (2477205848).

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

1159172352 is an equidigital number, since it uses as much as digits as its factorization.

1159172352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 247 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 1159172352 is about 34046.6202727965. The cubic root of 1159172352 is about 1050.4676230032.

The spelling of 1159172352 in words is "one billion, one hundred fifty-nine million, one hundred seventy-two thousand, three hundred fifty-two".