445241441257 has 2 divisors, whose sum is σ = 445241441258. Its totient is φ = 445241441256.

The previous prime is 445241441237. The next prime is 445241441261. The reversal of 445241441257 is 752144142544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307851864336 + 137389576921 = 554844^2 + 370661^2 .

It is a cyclic number.

It is not a de Polignac number, because 445241441257 - 2²⁷ = 445107223529 is a prime.

It is a super-2 number, since 2×445241441257² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (445241441237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222620720628 + 222620720629.

It is an arithmetic number, because the mean of its divisors is an integer number (222620720629).

Almost surely, 2^445241441257 is an apocalyptic number.

It is an amenable number.

445241441257 is a deficient number, since it is larger than the sum of its proper divisors (1).

445241441257 is an equidigital number, since it uses as much as digits as its factorization.

445241441257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 716800, while the sum is 43.

The spelling of 445241441257 in words is "four hundred forty-five billion, two hundred forty-one million, four hundred forty-one thousand, two hundred fifty-seven".