315514102646549 has 2 divisors, whose sum is σ = 315514102646550. Its totient is φ = 315514102646548.

The previous prime is 315514102646527. The next prime is 315514102646627. The reversal of 315514102646549 is 945646201415513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160262054086225 + 155252048560324 = 12659465^2 + 12460018^2 .

It is a cyclic number.

It is not a de Polignac number, because 315514102646549 - 2⁸ = 315514102646293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 315514102646494 and 315514102646503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315514102640549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157757051323274 + 157757051323275.

It is an arithmetic number, because the mean of its divisors is an integer number (157757051323275).

Almost surely, 2^{315514102646549} is an apocalyptic number.

It is an amenable number.

315514102646549 is a deficient number, since it is larger than the sum of its proper divisors (1).

315514102646549 is an equidigital number, since it uses as much as digits as its factorization.

315514102646549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552000, while the sum is 56.

The spelling of 315514102646549 in words is "three hundred fifteen trillion, five hundred fourteen billion, one hundred two million, six hundred forty-six thousand, five hundred forty-nine".