1140255215 has 8 divisors (see below), whose sum is σ = 1492697808. Its totient is φ = 829276480.

The previous prime is 1140255191. The next prime is 1140255289. The reversal of 1140255215 is 5125520411.

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

It is not a de Polignac number, because 1140255215 - 2¹⁶ = 1140189679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10365902 + ... + 10366011.

It is an arithmetic number, because the mean of its divisors is an integer number (186587226).

Almost surely, 2^1140255215 is an apocalyptic number.

1140255215 is a deficient number, since it is larger than the sum of its proper divisors (352442593).

1140255215 is a wasteful number, since it uses less digits than its factorization.

1140255215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20731929.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1140255215 is about 33767.6652287362. The cubic root of 1140255215 is about 1044.7218767951.

Adding to 1140255215 its reverse (5125520411), we get a palindrome (6265775626).

The spelling of 1140255215 in words is "one billion, one hundred forty million, two hundred fifty-five thousand, two hundred fifteen".