315135252545 has 8 divisors (see below), whose sum is σ = 378167041896. Its totient is φ = 252105042816.

The previous prime is 315135252539. The next prime is 315135252547. The reversal of 315135252545 is 545252531513.

It can be written as a sum of positive squares in 4 ways, for example, as 9024240016 + 306111012529 = 94996^2 + 553273^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315135252545 is a prime.

It is a super-3 number, since 3×315135252545³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315135252547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100499 + ... + 800231.

It is an arithmetic number, because the mean of its divisors is an integer number (47270880237).

Almost surely, 2^315135252545 is an apocalyptic number.

It is an amenable number.

315135252545 is a deficient number, since it is larger than the sum of its proper divisors (63031789351).

315135252545 is an equidigital number, since it uses as much as digits as its factorization.

315135252545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789811.

The product of its digits is 450000, while the sum is 41.

The spelling of 315135252545 in words is "three hundred fifteen billion, one hundred thirty-five million, two hundred fifty-two thousand, five hundred forty-five".