2305542691 has 2 divisors, whose sum is σ = 2305542692. Its totient is φ = 2305542690.

The previous prime is 2305542661. The next prime is 2305542713. The reversal of 2305542691 is 1962455032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2305542691 - 2⁹ = 2305542179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2305542691.

It is not a weakly prime, because it can be changed into another prime (2305542611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1152771345 + 1152771346.

It is an arithmetic number, because the mean of its divisors is an integer number (1152771346).

Almost surely, 2^2305542691 is an apocalyptic number.

2305542691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2305542691 is an equidigital number, since it uses as much as digits as its factorization.

2305542691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 2305542691 is about 48016.0670088669. The cubic root of 2305542691 is about 1321.0656169753.

The spelling of 2305542691 in words is "two billion, three hundred five million, five hundred forty-two thousand, six hundred ninety-one".