1154720000 has 180 divisors, whose sum is σ = 3294895296. Its totient is φ = 395520000.

The previous prime is 1154719967. The next prime is 1154720029. The reversal of 1154720000 is 274511.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1119485 + ... + 1120515.

Almost surely, 2^1154720000 is an apocalyptic number.

1154720000 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 1154720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1647447648).

1154720000 is an abundant number, since it is smaller than the sum of its proper divisors (2140175296).

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

1154720000 is an frugal number, since it uses more digits than its factorization.

1154720000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1154720000 is about 33981.1712570359. The cubic root of 1154720000 is about 1049.1209574072.

Adding to 1154720000 its reverse (274511), we get a palindrome (1154994511).

The spelling of 1154720000 in words is "one billion, one hundred fifty-four million, seven hundred twenty thousand".