43454112253 has 2 divisors, whose sum is σ = 43454112254. Its totient is φ = 43454112252.

The previous prime is 43454112223. The next prime is 43454112259. The reversal of 43454112253 is 35221145434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40145331769 + 3308780484 = 200363^2 + 57522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43454112253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43454112259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21727056126 + 21727056127.

It is an arithmetic number, because the mean of its divisors is an integer number (21727056127).

Almost surely, 2^43454112253 is an apocalyptic number.

It is an amenable number.

43454112253 is a deficient number, since it is larger than the sum of its proper divisors (1).

43454112253 is an equidigital number, since it uses as much as digits as its factorization.

43454112253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 34.

Adding to 43454112253 its reverse (35221145434), we get a palindrome (78675257687).

The spelling of 43454112253 in words is "forty-three billion, four hundred fifty-four million, one hundred twelve thousand, two hundred fifty-three".