1154728845 has 16 divisors (see below), whose sum is σ = 2052851520. Its totient is φ = 615855312.

The previous prime is 1154728829. The next prime is 1154728847. The reversal of 1154728845 is 5488274511.

1154728845 is a `hidden beast` number, since 1 + 1 + 547 + 28 + 84 + 5 = 666.

It is not a de Polignac number, because 1154728845 - 2⁴ = 1154728829 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1154728845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154728847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4276639 + ... + 4276908.

It is an arithmetic number, because the mean of its divisors is an integer number (128303220).

Almost surely, 2^1154728845 is an apocalyptic number.

1154728845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1154728845 is a deficient number, since it is larger than the sum of its proper divisors (898122675).

1154728845 is an equidigital number, since it uses as much as digits as its factorization.

1154728845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8553561 (or 8553555 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 1154728845 is about 33981.3014023889. The cubic root of 1154728845 is about 1049.1236361088.

The spelling of 1154728845 in words is "one billion, one hundred fifty-four million, seven hundred twenty-eight thousand, eight hundred forty-five".