313220005 has 48 divisors (see below), whose sum is σ = 450684864. Its totient is φ = 208293120.

The previous prime is 313219969. The next prime is 313220009. The reversal of 313220005 is 500022313.

It is a de Polignac number, because none of the positive numbers 2^k-313220005 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313220009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1484350 + ... + 1484560.

It is an arithmetic number, because the mean of its divisors is an integer number (9389268).

Almost surely, 2^313220005 is an apocalyptic number.

313220005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

313220005 is a deficient number, since it is larger than the sum of its proper divisors (137464859).

313220005 is a wasteful number, since it uses less digits than its factorization.

313220005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 313220005 is about 17698.0226296612. The cubic root of 313220005 is about 679.1251761992.

Adding to 313220005 its reverse (500022313), we get a palindrome (813242318).

The spelling of 313220005 in words is "three hundred thirteen million, two hundred twenty thousand, five".