1140020117 has 4 divisors (see below), whose sum is σ = 1144258380. Its totient is φ = 1135781856.

The previous prime is 1140020111. The next prime is 1140020137. The reversal of 1140020117 is 7110200411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7110200411 = 17 ⋅418247083.

It can be written as a sum of positive squares in 2 ways, for example, as 291521476 + 848498641 = 17074^2 + 29129^2 .

It is a cyclic number.

It is not a de Polignac number, because 1140020117 - 2¹⁰ = 1140019093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140020095 and 1140020104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140020111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2118728 + ... + 2119265.

It is an arithmetic number, because the mean of its divisors is an integer number (286064595).

Almost surely, 2^1140020117 is an apocalyptic number.

It is an amenable number.

1140020117 is a deficient number, since it is larger than the sum of its proper divisors (4238263).

1140020117 is an equidigital number, since it uses as much as digits as its factorization.

1140020117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4238262.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 1140020117 is about 33764.1839380134. The cubic root of 1140020117 is about 1044.6500715528.

Adding to 1140020117 its reverse (7110200411), we get a palindrome (8250220528).

The spelling of 1140020117 in words is "one billion, one hundred forty million, twenty thousand, one hundred seventeen".