2745903049 has 2 divisors, whose sum is σ = 2745903050. Its totient is φ = 2745903048.

The previous prime is 2745903031. The next prime is 2745903091. The reversal of 2745903049 is 9403095472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2576070025 + 169833024 = 50755^2 + 13032^2 .

It is a cyclic number.

It is not a de Polignac number, because 2745903049 - 2¹³ = 2745894857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2745902996 and 2745903014.

It is not a weakly prime, because it can be changed into another prime (2745903029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1372951524 + 1372951525.

It is an arithmetic number, because the mean of its divisors is an integer number (1372951525).

Almost surely, 2^2745903049 is an apocalyptic number.

It is an amenable number.

2745903049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2745903049 is an equidigital number, since it uses as much as digits as its factorization.

2745903049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 2745903049 is about 52401.3649535964. The cubic root of 2745903049 is about 1400.3235729980.

The spelling of 2745903049 in words is "two billion, seven hundred forty-five million, nine hundred three thousand, forty-nine".