1312617622 has 8 divisors (see below), whose sum is σ = 2072554200. Its totient is φ = 621766224.

The previous prime is 1312617601. The next prime is 1312617623. The reversal of 1312617622 is 2267162131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312617623) 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, 17271247 + ... + 17271322.

It is an arithmetic number, because the mean of its divisors is an integer number (259069275).

Almost surely, 2^1312617622 is an apocalyptic number.

1312617622 is a deficient number, since it is larger than the sum of its proper divisors (759936578).

1312617622 is a wasteful number, since it uses less digits than its factorization.

1312617622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34542590.

The product of its digits is 6048, while the sum is 31.

The square root of 1312617622 is about 36230.0651669301. The cubic root of 1312617622 is about 1094.9124905220.

Adding to 1312617622 its reverse (2267162131), we get a palindrome (3579779753).

The spelling of 1312617622 in words is "one billion, three hundred twelve million, six hundred seventeen thousand, six hundred twenty-two".