313620451 has 4 divisors (see below), whose sum is σ = 319537872. Its totient is φ = 307703032.

The previous prime is 313620449. The next prime is 313620481. The reversal of 313620451 is 154026313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313620451 - 2¹ = 313620449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313620421) 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, 2958631 + ... + 2958736.

It is an arithmetic number, because the mean of its divisors is an integer number (79884468).

Almost surely, 2^313620451 is an apocalyptic number.

313620451 is a deficient number, since it is larger than the sum of its proper divisors (5917421).

313620451 is an equidigital number, since it uses as much as digits as its factorization.

313620451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5917420.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 313620451 is about 17709.3323137830. The cubic root of 313620451 is about 679.4144692867.

Adding to 313620451 its reverse (154026313), we get a palindrome (467646764).

The spelling of 313620451 in words is "three hundred thirteen million, six hundred twenty thousand, four hundred fifty-one".