445212401 has 2 divisors, whose sum is σ = 445212402. Its totient is φ = 445212400.

The previous prime is 445212377. The next prime is 445212409. The reversal of 445212401 is 104212544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 445210000 + 2401 = 21100^2 + 49^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445212401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (445212409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222606200 + 222606201.

It is an arithmetic number, because the mean of its divisors is an integer number (222606201).

Almost surely, 2^445212401 is an apocalyptic number.

It is an amenable number.

445212401 is a deficient number, since it is larger than the sum of its proper divisors (1).

445212401 is an equidigital number, since it uses as much as digits as its factorization.

445212401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 445212401 is about 21100.0568956579. The cubic root of 445212401 is about 763.5821208512.

Adding to 445212401 its reverse (104212544), we get a palindrome (549424945).

It can be divided in two parts, 44521 and 2401, that multiplied together give a square (106894921 = 10339²).

The spelling of 445212401 in words is "four hundred forty-five million, two hundred twelve thousand, four hundred one".