1140424231 has 4 divisors (see below), whose sum is σ = 1140805000. Its totient is φ = 1140043464.

The previous prime is 1140424189. The next prime is 1140424279. The reversal of 1140424231 is 1324240411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1140424231 - 2¹¹ = 1140422183 is a prime.

It is a super-2 number, since 2×1140424231² = 2601134853303882722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140424331) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 185856 + ... + 191893.

It is an arithmetic number, because the mean of its divisors is an integer number (285201250).

Almost surely, 2^1140424231 is an apocalyptic number.

1140424231 is a deficient number, since it is larger than the sum of its proper divisors (380769).

1140424231 is an equidigital number, since it uses as much as digits as its factorization.

1140424231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380768.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1140424231 is about 33770.1677668323. The cubic root of 1140424231 is about 1044.7734927218.

Adding to 1140424231 its reverse (1324240411), we get a palindrome (2464664642).

The spelling of 1140424231 in words is "one billion, one hundred forty million, four hundred twenty-four thousand, two hundred thirty-one".