1313420624 has 10 divisors (see below), whose sum is σ = 2544752490. Its totient is φ = 656710304.

The previous prime is 1313420621. The next prime is 1313420627. The reversal of 1313420624 is 4260243131.

It is an interprime number because it is at equal distance from previous prime (1313420621) and next prime (1313420627).

It can be written as a sum of positive squares in only one way, i.e., 816130624 + 497290000 = 28568^2 + 22300^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1313420593 and 1313420602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313420621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41044379 + ... + 41044410.

It is an arithmetic number, because the mean of its divisors is an integer number (254475249).

Almost surely, 2^1313420624 is an apocalyptic number.

It is an amenable number.

1313420624 is a deficient number, since it is larger than the sum of its proper divisors (1231331866).

1313420624 is an equidigital number, since it uses as much as digits as its factorization.

1313420624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82088797 (or 82088791 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1313420624 is about 36241.1454565112. The cubic root of 1313420624 is about 1095.1357181848.

Adding to 1313420624 its reverse (4260243131), we get a palindrome (5573663755).

The spelling of 1313420624 in words is "one billion, three hundred thirteen million, four hundred twenty thousand, six hundred twenty-four".