126303040553 has 2 divisors, whose sum is σ = 126303040554. Its totient is φ = 126303040552.

The previous prime is 126303040547. The next prime is 126303040579. The reversal of 126303040553 is 355040303621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84502420249 + 41800620304 = 290693^2 + 204452^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126303040553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (126303045553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63151520276 + 63151520277.

It is an arithmetic number, because the mean of its divisors is an integer number (63151520277).

Almost surely, 2^126303040553 is an apocalyptic number.

It is an amenable number.

126303040553 is a deficient number, since it is larger than the sum of its proper divisors (1).

126303040553 is an equidigital number, since it uses as much as digits as its factorization.

126303040553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 32.

The spelling of 126303040553 in words is "one hundred twenty-six billion, three hundred three million, forty thousand, five hundred fifty-three".