315140223 has 4 divisors (see below), whose sum is σ = 420186968. Its totient is φ = 210093480.

The previous prime is 315140219. The next prime is 315140233. The reversal of 315140223 is 322041513.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322041513 = 3 ⋅107347171.

It is not a de Polignac number, because 315140223 - 2² = 315140219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 315140223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315140233) 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, 52523368 + ... + 52523373.

It is an arithmetic number, because the mean of its divisors is an integer number (105046742).

Almost surely, 2^315140223 is an apocalyptic number.

315140223 is a deficient number, since it is larger than the sum of its proper divisors (105046745).

315140223 is a wasteful number, since it uses less digits than its factorization.

315140223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105046744.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 315140223 is about 17752.1892452734. The cubic root of 315140223 is about 680.5101585447.

Adding to 315140223 its reverse (322041513), we get a palindrome (637181736).

The spelling of 315140223 in words is "three hundred fifteen million, one hundred forty thousand, two hundred twenty-three".