1252454423453 has 2 divisors, whose sum is σ = 1252454423454. Its totient is φ = 1252454423452.

The previous prime is 1252454423413. The next prime is 1252454423483. The reversal of 1252454423453 is 3543244542521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 647360240569 + 605094182884 = 804587^2 + 777878^2 .

It is an emirp because it is prime and its reverse (3543244542521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252454423453 - 2²⁴ = 1252437646237 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252454423413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626227211726 + 626227211727.

It is an arithmetic number, because the mean of its divisors is an integer number (626227211727).

Almost surely, 2^{1252454423453} is an apocalyptic number.

It is an amenable number.

1252454423453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252454423453 is an equidigital number, since it uses as much as digits as its factorization.

1252454423453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304000, while the sum is 44.

Adding to 1252454423453 its reverse (3543244542521), we get a palindrome (4795698965974).

The spelling of 1252454423453 in words is "one trillion, two hundred fifty-two billion, four hundred fifty-four million, four hundred twenty-three thousand, four hundred fifty-three".