315875783 has 4 divisors (see below), whose sum is σ = 319003368. Its totient is φ = 312748200.

The previous prime is 315875773. The next prime is 315875789. The reversal of 315875783 is 387578513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 387578513 = 7 ⋅55368359.

It is a cyclic number.

It is not a de Polignac number, because 315875783 - 2¹⁰ = 315874759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315875789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1563641 + ... + 1563842.

It is an arithmetic number, because the mean of its divisors is an integer number (79750842).

Almost surely, 2^315875783 is an apocalyptic number.

315875783 is a deficient number, since it is larger than the sum of its proper divisors (3127585).

315875783 is a wasteful number, since it uses less digits than its factorization.

315875783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127584.

The product of its digits is 705600, while the sum is 47.

The square root of 315875783 is about 17772.8946151155. The cubic root of 315875783 is about 681.0392004075.

The spelling of 315875783 in words is "three hundred fifteen million, eight hundred seventy-five thousand, seven hundred eighty-three".