315125244155 has 4 divisors (see below), whose sum is σ = 378150292992. Its totient is φ = 252100195320.

The previous prime is 315125244143. The next prime is 315125244169. The reversal of 315125244155 is 551442521513.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 315125244155 - 2¹⁴ = 315125227771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 31512524411 + ... + 31512524420.

It is an arithmetic number, because the mean of its divisors is an integer number (94537573248).

Almost surely, 2^315125244155 is an apocalyptic number.

315125244155 is a deficient number, since it is larger than the sum of its proper divisors (63025048837).

315125244155 is an equidigital number, since it uses as much as digits as its factorization.

315125244155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63025048836.

The product of its digits is 120000, while the sum is 38.

Adding to 315125244155 its reverse (551442521513), we get a palindrome (866567765668).

The spelling of 315125244155 in words is "three hundred fifteen billion, one hundred twenty-five million, two hundred forty-four thousand, one hundred fifty-five".