315145255203 has 20 divisors (see below), whose sum is σ = 472846457160. Its totient is φ = 209171287872.

The previous prime is 315145255181. The next prime is 315145255207. The reversal of 315145255203 is 302552541513.

315145255203 is a `hidden beast` number, since 3 + 1 + 51 + 4 + 52 + 552 + 0 + 3 = 666.

It is not a de Polignac number, because 315145255203 - 2¹⁷ = 315145124131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (315145255207) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8551398 + ... + 8588171.

It is an arithmetic number, because the mean of its divisors is an integer number (23642322858).

Almost surely, 2^315145255203 is an apocalyptic number.

315145255203 is a deficient number, since it is larger than the sum of its proper divisors (157701201957).

315145255203 is a wasteful number, since it uses less digits than its factorization.

315145255203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17139808 (or 17139799 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 315145255203 its reverse (302552541513), we get a palindrome (617697796716).

The spelling of 315145255203 in words is "three hundred fifteen billion, one hundred forty-five million, two hundred fifty-five thousand, two hundred three".