45124545035209 has 2 divisors, whose sum is σ = 45124545035210. Its totient is φ = 45124545035208.

The previous prime is 45124545035197. The next prime is 45124545035281. The reversal of 45124545035209 is 90253054542154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45032085254025 + 92459781184 = 6710595^2 + 304072^2 .

It is a cyclic number.

It is not a de Polignac number, because 45124545035209 - 2¹³ = 45124545027017 is a prime.

It is a super-2 number, since 2×45124545035209² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (45124545035809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22562272517604 + 22562272517605.

It is an arithmetic number, because the mean of its divisors is an integer number (22562272517605).

Almost surely, 2^{45124545035209} is an apocalyptic number.

It is an amenable number.

45124545035209 is a deficient number, since it is larger than the sum of its proper divisors (1).

45124545035209 is an equidigital number, since it uses as much as digits as its factorization.

45124545035209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320000, while the sum is 49.

The spelling of 45124545035209 in words is "forty-five trillion, one hundred twenty-four billion, five hundred forty-five million, thirty-five thousand, two hundred nine".