1140040231 has 8 divisors (see below), whose sum is σ = 1259424000. Its totient is φ = 1023280440.

The previous prime is 1140040211. The next prime is 1140040327. The reversal of 1140040231 is 1320400411.

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 1140040231 - 2¹⁹ = 1139515943 is a prime.

It is a super-2 number, since 2×1140040231² = 2599383456597066722, 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 (1140040201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 655081 + ... + 656818.

It is an arithmetic number, because the mean of its divisors is an integer number (157428000).

Almost surely, 2^1140040231 is an apocalyptic number.

1140040231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1140040231 is a deficient number, since it is larger than the sum of its proper divisors (119383769).

1140040231 is a wasteful number, since it uses less digits than its factorization.

1140040231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311989.

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

The square root of 1140040231 is about 33764.4817967047. The cubic root of 1140040231 is about 1044.6562152947.

Adding to 1140040231 its reverse (1320400411), we get a palindrome (2460440642).

The spelling of 1140040231 in words is "one billion, one hundred forty million, forty thousand, two hundred thirty-one".