2745907123 has 2 divisors, whose sum is σ = 2745907124. Its totient is φ = 2745907122.

The previous prime is 2745907069. The next prime is 2745907139. The reversal of 2745907123 is 3217095472.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2745907123 - 2²⁵ = 2712352691 is a prime.

It is not a weakly prime, because it can be changed into another prime (2745907183) 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 as a sum of consecutive naturals, namely, 1372953561 + 1372953562.

It is an arithmetic number, because the mean of its divisors is an integer number (1372953562).

Almost surely, 2^2745907123 is an apocalyptic number.

2745907123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745907123 is an equidigital number, since it uses as much as digits as its factorization.

2745907123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 2745907123 is about 52401.4038266152. The cubic root of 2745907123 is about 1400.3242655346.

The spelling of 2745907123 in words is "two billion, seven hundred forty-five million, nine hundred seven thousand, one hundred twenty-three".