45145187 has 2 divisors, whose sum is σ = 45145188. Its totient is φ = 45145186.

The previous prime is 45145169. The next prime is 45145213. The reversal of 45145187 is 78154154.

45145187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45145187 - 2⁶ = 45145123 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45145117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22572593 + 22572594.

It is an arithmetic number, because the mean of its divisors is an integer number (22572594).

Almost surely, 2^45145187 is an apocalyptic number.

45145187 is a deficient number, since it is larger than the sum of its proper divisors (1).

45145187 is an equidigital number, since it uses as much as digits as its factorization.

45145187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22400, while the sum is 35.

The square root of 45145187 is about 6719.0168179578. The cubic root of 45145187 is about 356.0714491739.

The spelling of 45145187 in words is "forty-five million, one hundred forty-five thousand, one hundred eighty-seven".