315425641243 has 4 divisors (see below), whose sum is σ = 323118949608. Its totient is φ = 307732332880.

The previous prime is 315425641213. The next prime is 315425641249. The reversal of 315425641243 is 342146524513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315425641243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315425641196 and 315425641205.

It is not an unprimeable number, because it can be changed into a prime (315425641249) 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 3 ways as a sum of consecutive naturals, for example, 3846654121 + ... + 3846654202.

It is an arithmetic number, because the mean of its divisors is an integer number (80779737402).

Almost surely, 2^315425641243 is an apocalyptic number.

315425641243 is a deficient number, since it is larger than the sum of its proper divisors (7693308365).

315425641243 is an equidigital number, since it uses as much as digits as its factorization.

315425641243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7693308364.

The product of its digits is 345600, while the sum is 40.

The spelling of 315425641243 in words is "three hundred fifteen billion, four hundred twenty-five million, six hundred forty-one thousand, two hundred forty-three".