2545709137 has 2 divisors, whose sum is σ = 2545709138. Its totient is φ = 2545709136.

The previous prime is 2545709123. The next prime is 2545709143. The reversal of 2545709137 is 7319075452.

2545709137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2542579776 + 3129361 = 50424^2 + 1769^2 .

It is a cyclic number.

It is not a de Polignac number, because 2545709137 - 2¹¹ = 2545707089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2545709093 and 2545709102.

It is not a weakly prime, because it can be changed into another prime (2545709107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272854568 + 1272854569.

It is an arithmetic number, because the mean of its divisors is an integer number (1272854569).

Almost surely, 2^2545709137 is an apocalyptic number.

It is an amenable number.

2545709137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2545709137 is an equidigital number, since it uses as much as digits as its factorization.

2545709137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 2545709137 is about 50455.0209295368. The cubic root of 2545709137 is about 1365.4304817467.

The spelling of 2545709137 in words is "two billion, five hundred forty-five million, seven hundred nine thousand, one hundred thirty-seven".