315145420143 has 16 divisors (see below), whose sum is σ = 427250368512. Its totient is φ = 206571420000.

The previous prime is 315145420133. The next prime is 315145420171. The reversal of 315145420143 is 341024541513.

It is not a de Polignac number, because 315145420143 - 2⁵ = 315145420111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315145420133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129298 + ... + 804368.

It is an arithmetic number, because the mean of its divisors is an integer number (26703148032).

Almost surely, 2^315145420143 is an apocalyptic number.

315145420143 is a deficient number, since it is larger than the sum of its proper divisors (112104948369).

315145420143 is a wasteful number, since it uses less digits than its factorization.

315145420143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677686.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 315145420143 its reverse (341024541513), we get a palindrome (656169961656).

The spelling of 315145420143 in words is "three hundred fifteen billion, one hundred forty-five million, four hundred twenty thousand, one hundred forty-three".