2513117161 has 3 divisors (see below), whose sum is σ = 2513167293. Its totient is φ = 2513067030.

The previous prime is 2513117129. The next prime is 2513117179. The reversal of 2513117161 is 1617113152.

The square root of 2513117161 is 50131.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2513117161 - 2⁵ = 2513117129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2513117261) 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 2 ways as a sum of consecutive naturals, for example, 25066 + ... + 75196.

It is an arithmetic number, because the mean of its divisors is an integer number (837722431).

Almost surely, 2^2513117161 is an apocalyptic number.

2513117161 is the 50131-st square number.

2513117161 is the 25066-th centered octagonal number.

It is an amenable number.

2513117161 is a deficient number, since it is larger than the sum of its proper divisors (50132).

2513117161 is an frugal number, since it uses more digits than its factorization.

2513117161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100262 (or 50131 counting only the distinct ones).

The product of its digits is 1260, while the sum is 28.

The cubic root of 2513117161 is about 1359.5783657279.

The spelling of 2513117161 in words is "two billion, five hundred thirteen million, one hundred seventeen thousand, one hundred sixty-one".