45125052109 has 2 divisors, whose sum is σ = 45125052110. Its totient is φ = 45125052108.

The previous prime is 45125052083. The next prime is 45125052163. The reversal of 45125052109 is 90125052154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45123106084 + 1946025 = 212422^2 + 1395^2 .

It is a cyclic number.

It is not a de Polignac number, because 45125052109 - 2³³ = 36535117517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45125052179) 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, 22562526054 + 22562526055.

It is an arithmetic number, because the mean of its divisors is an integer number (22562526055).

Almost surely, 2^45125052109 is an apocalyptic number.

It is an amenable number.

45125052109 is a deficient number, since it is larger than the sum of its proper divisors (1).

45125052109 is an equidigital number, since it uses as much as digits as its factorization.

45125052109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 45125052109 in words is "forty-five billion, one hundred twenty-five million, fifty-two thousand, one hundred nine".