145540344202453 has 2 divisors, whose sum is σ = 145540344202454. Its totient is φ = 145540344202452.

The previous prime is 145540344202399. The next prime is 145540344202459. The reversal of 145540344202453 is 354202443045541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94644918587844 + 50895425614609 = 9728562^2 + 7134103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145540344202453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145540344202459) 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, 72770172101226 + 72770172101227.

It is an arithmetic number, because the mean of its divisors is an integer number (72770172101227).

Almost surely, 2^{145540344202453} is an apocalyptic number.

It is an amenable number.

145540344202453 is a deficient number, since it is larger than the sum of its proper divisors (1).

145540344202453 is an equidigital number, since it uses as much as digits as its factorization.

145540344202453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608000, while the sum is 46.

Adding to 145540344202453 its reverse (354202443045541), we get a palindrome (499742787247994).

The spelling of 145540344202453 in words is "one hundred forty-five trillion, five hundred forty billion, three hundred forty-four million, two hundred two thousand, four hundred fifty-three".