2305313661 has 8 divisors (see below), whose sum is σ = 3512858944. Its totient is φ = 1317322080.

The previous prime is 2305313657. The next prime is 2305313663. The reversal of 2305313661 is 1663135032.

It is a happy number.

2305313661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2305313661 - 2² = 2305313657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2305313663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54888400 + ... + 54888441.

It is an arithmetic number, because the mean of its divisors is an integer number (439107368).

Almost surely, 2^2305313661 is an apocalyptic number.

2305313661 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2305313661 is a deficient number, since it is larger than the sum of its proper divisors (1207545283).

2305313661 is a wasteful number, since it uses less digits than its factorization.

2305313661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109776851.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 2305313661 is about 48013.6820187746. The cubic root of 2305313661 is about 1321.0218711393.

Adding to 2305313661 its reverse (1663135032), we get a palindrome (3968448693).

The spelling of 2305313661 in words is "two billion, three hundred five million, three hundred thirteen thousand, six hundred sixty-one".