315515244153 has 4 divisors (see below), whose sum is σ = 420686992208. Its totient is φ = 210343496100.

The previous prime is 315515244043. The next prime is 315515244181. The reversal of 315515244153 is 351442515513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 351442515513 = 3 ⋅117147505171.

It is not a de Polignac number, because 315515244153 - 2¹⁸ = 315514982009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315515245153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52585874023 + ... + 52585874028.

It is an arithmetic number, because the mean of its divisors is an integer number (105171748052).

Almost surely, 2^315515244153 is an apocalyptic number.

It is an amenable number.

315515244153 is a deficient number, since it is larger than the sum of its proper divisors (105171748055).

315515244153 is a wasteful number, since it uses less digits than its factorization.

315515244153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105171748054.

The product of its digits is 180000, while the sum is 39.

Adding to 315515244153 its reverse (351442515513), we get a palindrome (666957759666).

The spelling of 315515244153 in words is "three hundred fifteen billion, five hundred fifteen million, two hundred forty-four thousand, one hundred fifty-three".