1154521056 has 48 divisors (see below), whose sum is σ = 3263745744. Its totient is φ = 355236864.

The previous prime is 1154521037. The next prime is 1154521079. The reversal of 1154521056 is 6501254511.

It is a tau number, because it is divible by the number of its divisors (48).

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 7 ways as a sum of consecutive naturals, for example, 461301 + ... + 463796.

It is an arithmetic number, because the mean of its divisors is an integer number (67994703).

Almost surely, 2^1154521056 is an apocalyptic number.

1154521056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1154521056 is an abundant number, since it is smaller than the sum of its proper divisors (2109224688).

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

1154521056 is a wasteful number, since it uses less digits than its factorization.

1154521056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925123 (or 925115 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 1154521056 is about 33978.2438628014. The cubic root of 1154521056 is about 1049.0607037505.

Adding to 1154521056 its reverse (6501254511), we get a palindrome (7655775567).

The spelling of 1154521056 in words is "one billion, one hundred fifty-four million, five hundred twenty-one thousand, fifty-six".