1117616513 has 4 divisors (see below), whose sum is σ = 1203587028. Its totient is φ = 1031646000.

The previous prime is 1117616477. The next prime is 1117616519. The reversal of 1117616513 is 3156167111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3156167111 = 23 ⋅137224657.

It can be written as a sum of positive squares in 2 ways, for example, as 520889329 + 596727184 = 22823^2 + 24428^2 .

It is a cyclic number.

It is not a de Polignac number, because 1117616513 - 2⁶ = 1117616449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117616513.

It is not an unprimeable number, because it can be changed into a prime (1117616519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42985238 + ... + 42985263.

It is an arithmetic number, because the mean of its divisors is an integer number (300896757).

Almost surely, 2^1117616513 is an apocalyptic number.

1117616513 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1117616513 is a deficient number, since it is larger than the sum of its proper divisors (85970515).

1117616513 is an equidigital number, since it uses as much as digits as its factorization.

1117616513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85970514.

The product of its digits is 3780, while the sum is 32.

The square root of 1117616513 is about 33430.7719474140. The cubic root of 1117616513 is about 1037.7616160885.

The spelling of 1117616513 in words is "one billion, one hundred seventeen million, six hundred sixteen thousand, five hundred thirteen".