1315220004 has 72 divisors (see below), whose sum is σ = 3940267968. Its totient is φ = 375775200.

The previous prime is 1315219991. The next prime is 1315220047. The reversal of 1315220004 is 4000225131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 89847 + ... + 103454.

It is an arithmetic number, because the mean of its divisors is an integer number (54725944).

Almost surely, 2^1315220004 is an apocalyptic number.

1315220004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1315220004 is an abundant number, since it is smaller than the sum of its proper divisors (2625047964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315220004 is a wasteful number, since it uses less digits than its factorization.

1315220004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193327 (or 193313 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1315220004 is about 36265.9620581062. The cubic root of 1315220004 is about 1095.6356002151.

Adding to 1315220004 its reverse (4000225131), we get a palindrome (5315445135).

The spelling of 1315220004 in words is "one billion, three hundred fifteen million, two hundred twenty thousand, four".