445545137 has 2 divisors, whose sum is σ = 445545138. Its totient is φ = 445545136.

The previous prime is 445545103. The next prime is 445545169. The reversal of 445545137 is 731545544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 345365056 + 100180081 = 18584^2 + 10009^2 .

It is a cyclic number.

It is not a de Polignac number, because 445545137 - 2²⁰ = 444496561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 445545137.

It is not a weakly prime, because it can be changed into another prime (445545187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222772568 + 222772569.

It is an arithmetic number, because the mean of its divisors is an integer number (222772569).

Almost surely, 2^445545137 is an apocalyptic number.

It is an amenable number.

445545137 is a deficient number, since it is larger than the sum of its proper divisors (1).

445545137 is an equidigital number, since it uses as much as digits as its factorization.

445545137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 38.

The square root of 445545137 is about 21107.9401410938. The cubic root of 445545137 is about 763.7722982374.

The spelling of 445545137 in words is "four hundred forty-five million, five hundred forty-five thousand, one hundred thirty-seven".