315143113 has 4 divisors (see below), whose sum is σ = 315178948. Its totient is φ = 315107280.

The previous prime is 315143107. The next prime is 315143123. The reversal of 315143113 is 311341513.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 90383049 + 224760064 = 9507^2 + 14992^2 .

It is a cyclic number.

It is not a de Polignac number, because 315143113 - 2⁹ = 315142601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315143123) 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, 5323 + ... + 25663.

It is an arithmetic number, because the mean of its divisors is an integer number (78794737).

Almost surely, 2^315143113 is an apocalyptic number.

It is an amenable number.

315143113 is a deficient number, since it is larger than the sum of its proper divisors (35835).

315143113 is a wasteful number, since it uses less digits than its factorization.

315143113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35834.

The product of its digits is 540, while the sum is 22.

The square root of 315143113 is about 17752.2706434980. The cubic root of 315143113 is about 680.5122387493.

Adding to 315143113 its reverse (311341513), we get a palindrome (626484626).

It can be divided in two parts, 3151 and 43113, that added together give a palindrome (46264).

The spelling of 315143113 in words is "three hundred fifteen million, one hundred forty-three thousand, one hundred thirteen".