315342133 has 4 divisors (see below), whose sum is σ = 320048800. Its totient is φ = 310635468.

The previous prime is 315342113. The next prime is 315342187. The reversal of 315342133 is 331243513.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331243513 = 587 ⋅564299.

It is a cyclic number.

It is not a de Polignac number, because 315342133 - 2⁵ = 315342101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 315342098 and 315342107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315342113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2353233 + ... + 2353366.

It is an arithmetic number, because the mean of its divisors is an integer number (80012200).

Almost surely, 2^315342133 is an apocalyptic number.

It is an amenable number.

315342133 is a deficient number, since it is larger than the sum of its proper divisors (4706667).

315342133 is an equidigital number, since it uses as much as digits as its factorization.

315342133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4706666.

The product of its digits is 3240, while the sum is 25.

The square root of 315342133 is about 17757.8752388905. The cubic root of 315342133 is about 680.6554615582.

Adding to 315342133 its reverse (331243513), we get a palindrome (646585646).

The spelling of 315342133 in words is "three hundred fifteen million, three hundred forty-two thousand, one hundred thirty-three".