445420141 has 2 divisors, whose sum is σ = 445420142. Its totient is φ = 445420140.

The previous prime is 445420117. The next prime is 445420163. The reversal of 445420141 is 141024544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353816100 + 91604041 = 18810^2 + 9571^2 .

It is a cyclic number.

It is not a de Polignac number, because 445420141 - 2²¹ = 443322989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445426141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222710070 + 222710071.

It is an arithmetic number, because the mean of its divisors is an integer number (222710071).

Almost surely, 2^445420141 is an apocalyptic number.

It is an amenable number.

445420141 is a deficient number, since it is larger than the sum of its proper divisors (1).

445420141 is an equidigital number, since it uses as much as digits as its factorization.

445420141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 445420141 is about 21104.9790570851. The cubic root of 445420141 is about 763.7008670823.

Adding to 445420141 its reverse (141024544), we get a palindrome (586444685).

The spelling of 445420141 in words is "four hundred forty-five million, four hundred twenty thousand, one hundred forty-one".