1140711655 has 4 divisors (see below), whose sum is σ = 1368853992. Its totient is φ = 912569320.

The previous prime is 1140711647. The next prime is 1140711659. The reversal of 1140711655 is 5561170411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5561170411 = 37 ⋅150301903.

It is not a de Polignac number, because 1140711655 - 2³ = 1140711647 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140711659) 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, 114071161 + ... + 114071170.

It is an arithmetic number, because the mean of its divisors is an integer number (342213498).

Almost surely, 2^1140711655 is an apocalyptic number.

1140711655 is a deficient number, since it is larger than the sum of its proper divisors (228142337).

1140711655 is an equidigital number, since it uses as much as digits as its factorization.

1140711655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228142336.

The product of its (nonzero) digits is 4200, while the sum is 31.

The square root of 1140711655 is about 33774.4230890773. The cubic root of 1140711655 is about 1044.8612576500.

The spelling of 1140711655 in words is "one billion, one hundred forty million, seven hundred eleven thousand, six hundred fifty-five".