315252252509 has 2 divisors, whose sum is σ = 315252252510. Its totient is φ = 315252252508.

The previous prime is 315252252473. The next prime is 315252252529. The reversal of 315252252509 is 905252252513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304168795225 + 11083457284 = 551515^2 + 105278^2 .

It is a cyclic number.

It is not a de Polignac number, because 315252252509 - 2³⁶ = 246532775773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315252252529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157626126254 + 157626126255.

It is an arithmetic number, because the mean of its divisors is an integer number (157626126255).

Almost surely, 2^315252252509 is an apocalyptic number.

It is an amenable number.

315252252509 is a deficient number, since it is larger than the sum of its proper divisors (1).

315252252509 is an equidigital number, since it uses as much as digits as its factorization.

315252252509 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.

The spelling of 315252252509 in words is "three hundred fifteen billion, two hundred fifty-two million, two hundred fifty-two thousand, five hundred nine".