1158815360 has 32 divisors (see below), whose sum is σ = 2770294500. Its totient is φ = 463525888.

The previous prime is 1158815351. The next prime is 1158815363. The reversal of 1158815360 is 635188511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1151109184 + 7706176 = 33928^2 + 2776^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (1158815363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904685 + ... + 905964.

Almost surely, 2^1158815360 is an apocalyptic number.

1158815360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1158815360 is an abundant number, since it is smaller than the sum of its proper divisors (1611479140).

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

1158815360 is an equidigital number, since it uses as much as digits as its factorization.

1158815360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810668 (or 1810656 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 38.

The square root of 1158815360 is about 34041.3771754317. The cubic root of 1158815360 is about 1050.3597739157.

The spelling of 1158815360 in words is "one billion, one hundred fifty-eight million, eight hundred fifteen thousand, three hundred sixty".