515315133400451 has 2 divisors, whose sum is σ = 515315133400452. Its totient is φ = 515315133400450.

The previous prime is 515315133400447. The next prime is 515315133400511. The reversal of 515315133400451 is 154004331513515.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 515315133400451 - 2² = 515315133400447 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 515315133400399 and 515315133400408.

It is not a weakly prime, because it can be changed into another prime (515315133450451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257657566700225 + 257657566700226.

It is an arithmetic number, because the mean of its divisors is an integer number (257657566700226).

Almost surely, 2^{515315133400451} is an apocalyptic number.

515315133400451 is a deficient number, since it is larger than the sum of its proper divisors (1).

515315133400451 is an equidigital number, since it uses as much as digits as its factorization.

515315133400451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270000, while the sum is 41.

Adding to 515315133400451 its reverse (154004331513515), we get a palindrome (669319464913966).

The spelling of 515315133400451 in words is "five hundred fifteen trillion, three hundred fifteen billion, one hundred thirty-three million, four hundred thousand, four hundred fifty-one".