245343323453 has 2 divisors, whose sum is σ = 245343323454. Its totient is φ = 245343323452.

The previous prime is 245343323411. The next prime is 245343323479. The reversal of 245343323453 is 354323343542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216510604249 + 28832719204 = 465307^2 + 169802^2 .

It is a cyclic number.

It is not a de Polignac number, because 245343323453 - 2¹⁶ = 245343257917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245343323453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245343323053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122671661726 + 122671661727.

It is an arithmetic number, because the mean of its divisors is an integer number (122671661727).

Almost surely, 2^245343323453 is an apocalyptic number.

It is an amenable number.

245343323453 is a deficient number, since it is larger than the sum of its proper divisors (1).

245343323453 is an equidigital number, since it uses as much as digits as its factorization.

245343323453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 41.

Adding to 245343323453 its reverse (354323343542), we get a palindrome (599666666995).

The spelling of 245343323453 in words is "two hundred forty-five billion, three hundred forty-three million, three hundred twenty-three thousand, four hundred fifty-three".