1140032221 has 4 divisors (see below), whose sum is σ = 1140434944. Its totient is φ = 1139629500.

The previous prime is 1140032219. The next prime is 1140032251. The reversal of 1140032221 is 1222300411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1140032221 - 2¹ = 1140032219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140032195 and 1140032204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140032251) 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 3 ways as a sum of consecutive naturals, for example, 197085 + ... + 202786.

It is an arithmetic number, because the mean of its divisors is an integer number (285108736).

Almost surely, 2^1140032221 is an apocalyptic number.

It is an amenable number.

1140032221 is a deficient number, since it is larger than the sum of its proper divisors (402723).

1140032221 is an equidigital number, since it uses as much as digits as its factorization.

1140032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402722.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1140032221 is about 33764.3631807265. The cubic root of 1140032221 is about 1044.6537686805.

Adding to 1140032221 its reverse (1222300411), we get a palindrome (2362332632).

The spelling of 1140032221 in words is "one billion, one hundred forty million, thirty-two thousand, two hundred twenty-one".