313515133 has 4 divisors (see below), whose sum is σ = 313817920. Its totient is φ = 313212348.

The previous prime is 313515131. The next prime is 313515149. The reversal of 313515133 is 331515313.

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: 331515313 = 373 ⋅888781.

It is a cyclic number.

It is not a de Polignac number, because 313515133 - 2¹ = 313515131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313515098 and 313515107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313515131) 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, 149835 + ... + 151912.

It is an arithmetic number, because the mean of its divisors is an integer number (78454480).

Almost surely, 2^313515133 is an apocalyptic number.

It is an amenable number.

313515133 is a deficient number, since it is larger than the sum of its proper divisors (302787).

313515133 is a wasteful number, since it uses less digits than its factorization.

313515133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302786.

The product of its digits is 2025, while the sum is 25.

The square root of 313515133 is about 17706.3585471435. The cubic root of 313515133 is about 679.3384085748.

The spelling of 313515133 in words is "three hundred thirteen million, five hundred fifteen thousand, one hundred thirty-three".