1140487521 has 8 divisors (see below), whose sum is σ = 1600684320. Its totient is φ = 720307872.

The previous prime is 1140487493. The next prime is 1140487531. The reversal of 1140487521 is 1257840411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1140487521 - 2⁹ = 1140487009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1140487531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10004220 + ... + 10004333.

It is an arithmetic number, because the mean of its divisors is an integer number (200085540).

Almost surely, 2^1140487521 is an apocalyptic number.

It is an amenable number.

1140487521 is a deficient number, since it is larger than the sum of its proper divisors (460196799).

1140487521 is a wasteful number, since it uses less digits than its factorization.

1140487521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20008575.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 1140487521 is about 33771.1048235026. The cubic root of 1140487521 is about 1044.7928195914.

The spelling of 1140487521 in words is "one billion, one hundred forty million, four hundred eighty-seven thousand, five hundred twenty-one".