1140321505 has 8 divisors (see below), whose sum is σ = 1369506600. Its totient is φ = 911510016.

The previous prime is 1140321491. The next prime is 1140321551. The reversal of 1140321505 is 5051230411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 296941824 + 843379681 = 17232^2 + 29041^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1140321505 - 2¹¹ = 1140319457 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86640 + ... + 98929.

It is an arithmetic number, because the mean of its divisors is an integer number (171188325).

Almost surely, 2^1140321505 is an apocalyptic number.

It is an amenable number.

1140321505 is a deficient number, since it is larger than the sum of its proper divisors (229185095).

1140321505 is a wasteful number, since it uses less digits than its factorization.

1140321505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186803.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1140321505 is about 33768.6467747821. The cubic root of 1140321505 is about 1044.7421217573.

Adding to 1140321505 its reverse (5051230411), we get a palindrome (6191551916).

The spelling of 1140321505 in words is "one billion, one hundred forty million, three hundred twenty-one thousand, five hundred five".