445360121 has 2 divisors, whose sum is σ = 445360122. Its totient is φ = 445360120.

The previous prime is 445360117. The next prime is 445360129. The reversal of 445360121 is 121063544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420250000 + 25110121 = 20500^2 + 5011^2 .

It is a cyclic number.

It is not a de Polignac number, because 445360121 - 2² = 445360117 is a prime.

It is not a weakly prime, because it can be changed into another prime (445360129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222680060 + 222680061.

It is an arithmetic number, because the mean of its divisors is an integer number (222680061).

Almost surely, 2^445360121 is an apocalyptic number.

It is an amenable number.

445360121 is a deficient number, since it is larger than the sum of its proper divisors (1).

445360121 is an equidigital number, since it uses as much as digits as its factorization.

445360121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 445360121 is about 21103.5570698401. The cubic root of 445360121 is about 763.6665628522. Note that the first 3 decimals are identical.

The spelling of 445360121 in words is "four hundred forty-five million, three hundred sixty thousand, one hundred twenty-one".