315135143144 has 8 divisors (see below), whose sum is σ = 590878393410. Its totient is φ = 157567571568.

The previous prime is 315135143131. The next prime is 315135143203. The reversal of 315135143144 is 441341531513.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 315068916100 + 66227044 = 561310^2 + 8138^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 19695946439 + ... + 19695946454.

Almost surely, 2^315135143144 is an apocalyptic number.

It is an amenable number.

315135143144 is a deficient number, since it is larger than the sum of its proper divisors (275743250266).

315135143144 is a wasteful number, since it uses less digits than its factorization.

315135143144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39391892899 (or 39391892895 counting only the distinct ones).

The product of its digits is 43200, while the sum is 35.

Adding to 315135143144 its reverse (441341531513), we get a palindrome (756476674657).

The spelling of 315135143144 in words is "three hundred fifteen billion, one hundred thirty-five million, one hundred forty-three thousand, one hundred forty-four".