313503345 has 16 divisors (see below), whose sum is σ = 557339520. Its totient is φ = 167201712.

The previous prime is 313503329. The next prime is 313503347. The reversal of 313503345 is 543305313.

It is a happy number.

313503345 is a `hidden beast` number, since 313 + 5 + 0 + 3 + 345 = 666.

It is not a de Polignac number, because 313503345 - 2⁴ = 313503329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (313503347) 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 15 ways as a sum of consecutive naturals, for example, 1160989 + ... + 1161258.

It is an arithmetic number, because the mean of its divisors is an integer number (34833720).

Almost surely, 2^313503345 is an apocalyptic number.

It is an amenable number.

313503345 is a deficient number, since it is larger than the sum of its proper divisors (243836175).

313503345 is a wasteful number, since it uses less digits than its factorization.

313503345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322261 (or 2322255 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 27.

The square root of 313503345 is about 17706.0256692460. The cubic root of 313503345 is about 679.3298942155.

Adding to 313503345 its reverse (543305313), we get a palindrome (856808658).

The spelling of 313503345 in words is "three hundred thirteen million, five hundred three thousand, three hundred forty-five".