1312224585 has 16 divisors (see below), whose sum is σ = 2399496576. Its totient is φ = 599874048.

The previous prime is 1312224581. The next prime is 1312224629. The reversal of 1312224585 is 5854222131.

It is not a de Polignac number, because 1312224585 - 2² = 1312224581 is a prime.

It is a super-2 number, since 2×1312224585² = 3443866722956844450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312224581) 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, 6248584 + ... + 6248793.

It is an arithmetic number, because the mean of its divisors is an integer number (149968536).

Almost surely, 2^1312224585 is an apocalyptic number.

1312224585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312224585 is a deficient number, since it is larger than the sum of its proper divisors (1087271991).

1312224585 is a wasteful number, since it uses less digits than its factorization.

1312224585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12497392.

The product of its digits is 19200, while the sum is 33.

The square root of 1312224585 is about 36224.6405779271. The cubic root of 1312224585 is about 1094.8031964232.

The spelling of 1312224585 in words is "one billion, three hundred twelve million, two hundred twenty-four thousand, five hundred eighty-five".