2261117513 has 4 divisors (see below), whose sum is σ = 2261212800. Its totient is φ = 2261022228.

The previous prime is 2261117503. The next prime is 2261117531. The reversal of 2261117513 is 3157111622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2261117513 - 2¹⁶ = 2261051977 is a prime.

It is a super-2 number, since 2×2261117513² = 10225304815190610338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2261117503) 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, 19388 + ... + 69986.

It is an arithmetic number, because the mean of its divisors is an integer number (565303200).

Almost surely, 2^2261117513 is an apocalyptic number.

It is an amenable number.

2261117513 is a deficient number, since it is larger than the sum of its proper divisors (95287).

2261117513 is an equidigital number, since it uses as much as digits as its factorization.

2261117513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95286.

The product of its digits is 2520, while the sum is 29.

The square root of 2261117513 is about 47551.2093747362. The cubic root of 2261117513 is about 1312.5253837328.

The spelling of 2261117513 in words is "two billion, two hundred sixty-one million, one hundred seventeen thousand, five hundred thirteen".