1140055531 has 8 divisors (see below), whose sum is σ = 1152126864. Its totient is φ = 1128019200.

The previous prime is 1140055529. The next prime is 1140055589. The reversal of 1140055531 is 1355500411.

It is a happy number.

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 1140055531 - 2¹ = 1140055529 is a prime.

It is a super-2 number, since 2×1140055531² = 2599453227527383922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140055496 and 1140055505.

It is not an unprimeable number, because it can be changed into a prime (1140055031) 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, 59520 + ... + 76306.

It is an arithmetic number, because the mean of its divisors is an integer number (144015858).

Almost surely, 2^1140055531 is an apocalyptic number.

1140055531 is a deficient number, since it is larger than the sum of its proper divisors (12071333).

1140055531 is a wasteful number, since it uses less digits than its factorization.

1140055531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17501.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1140055531 is about 33764.7083653924. The cubic root of 1140055531 is about 1044.6608885709.

Adding to 1140055531 its reverse (1355500411), we get a palindrome (2495555942).

The spelling of 1140055531 in words is "one billion, one hundred forty million, fifty-five thousand, five hundred thirty-one".