315435633509 has 2 divisors, whose sum is σ = 315435633510. Its totient is φ = 315435633508.

The previous prime is 315435633481. The next prime is 315435633521. The reversal of 315435633509 is 905336534513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315257544484 + 178089025 = 561478^2 + 13345^2 .

It is a cyclic number.

It is not a de Polignac number, because 315435633509 - 2²⁴ = 315418856293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315435633529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157717816754 + 157717816755.

It is an arithmetic number, because the mean of its divisors is an integer number (157717816755).

Almost surely, 2^315435633509 is an apocalyptic number.

It is an amenable number.

315435633509 is a deficient number, since it is larger than the sum of its proper divisors (1).

315435633509 is an equidigital number, since it uses as much as digits as its factorization.

315435633509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2187000, while the sum is 47.

The spelling of 315435633509 in words is "three hundred fifteen billion, four hundred thirty-five million, six hundred thirty-three thousand, five hundred nine".