315546145240553 has 2 divisors, whose sum is σ = 315546145240554. Its totient is φ = 315546145240552.

The previous prime is 315546145240517. The next prime is 315546145240561. The reversal of 315546145240553 is 355042541645513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259240526498704 + 56305618741849 = 16100948^2 + 7503707^2 .

It is a cyclic number.

It is not a de Polignac number, because 315546145240553 - 2³² = 315541850273257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315546145240495 and 315546145240504.

It is not a weakly prime, because it can be changed into another prime (315546145290553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157773072620276 + 157773072620277.

It is an arithmetic number, because the mean of its divisors is an integer number (157773072620277).

Almost surely, 2^{315546145240553} is an apocalyptic number.

It is an amenable number.

315546145240553 is a deficient number, since it is larger than the sum of its proper divisors (1).

315546145240553 is an equidigital number, since it uses as much as digits as its factorization.

315546145240553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21600000, while the sum is 53.

The spelling of 315546145240553 in words is "three hundred fifteen trillion, five hundred forty-six billion, one hundred forty-five million, two hundred forty thousand, five hundred fifty-three".