445231315253 has 2 divisors, whose sum is σ = 445231315254. Its totient is φ = 445231315252.

The previous prime is 445231315213. The next prime is 445231315271. The reversal of 445231315253 is 352513132544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270559143409 + 174672171844 = 520153^2 + 417938^2 .

It is a cyclic number.

It is not a de Polignac number, because 445231315253 - 2¹⁸ = 445231053109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445231315213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222615657626 + 222615657627.

It is an arithmetic number, because the mean of its divisors is an integer number (222615657627).

Almost surely, 2^445231315253 is an apocalyptic number.

It is an amenable number.

445231315253 is a deficient number, since it is larger than the sum of its proper divisors (1).

445231315253 is an equidigital number, since it uses as much as digits as its factorization.

445231315253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216000, while the sum is 38.

Adding to 445231315253 its reverse (352513132544), we get a palindrome (797744447797).

The spelling of 445231315253 in words is "four hundred forty-five billion, two hundred thirty-one million, three hundred fifteen thousand, two hundred fifty-three".