315143442425 has 36 divisors (see below), whose sum is σ = 465665687676. Its totient is φ = 210827635200.

The previous prime is 315143442413. The next prime is 315143442443. The reversal of 315143442425 is 524244341513.

It can be written as a sum of positive squares in 6 ways, for example, as 48672743161 + 266470699264 = 220619^2 + 516208^2 .

It is not a de Polignac number, because 315143442425 - 2⁴ = 315143442409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3087092 + ... + 3187541.

It is an arithmetic number, because the mean of its divisors is an integer number (12935157991).

Almost surely, 2^315143442425 is an apocalyptic number.

315143442425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

315143442425 is a deficient number, since it is larger than the sum of its proper divisors (150522245251).

315143442425 is a wasteful number, since it uses less digits than its factorization.

315143442425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6274698 (or 6274686 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

Adding to 315143442425 its reverse (524244341513), we get a palindrome (839387783938).

The spelling of 315143442425 in words is "three hundred fifteen billion, one hundred forty-three million, four hundred forty-two thousand, four hundred twenty-five".