1141728665 has 32 divisors (see below), whose sum is σ = 1743033600. Its totient is φ = 711715200.

The previous prime is 1141728631. The next prime is 1141728673. The reversal of 1141728665 is 5668271411.

It is not a de Polignac number, because 1141728665 - 2²⁰ = 1140680089 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 11396 + ... + 49125.

It is an arithmetic number, because the mean of its divisors is an integer number (54469800).

Almost surely, 2^1141728665 is an apocalyptic number.

It is an amenable number.

1141728665 is a deficient number, since it is larger than the sum of its proper divisors (601304935).

1141728665 is an equidigital number, since it uses as much as digits as its factorization.

1141728665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60558 (or 60544 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 1141728665 is about 33789.4756544105. The cubic root of 1141728665 is about 1045.1716833681.

The spelling of 1141728665 in words is "one billion, one hundred forty-one million, seven hundred twenty-eight thousand, six hundred sixty-five".