1312701738 has 32 divisors (see below), whose sum is σ = 2681726400. Its totient is φ = 428246016.

The previous prime is 1312701737. The next prime is 1312701743. The reversal of 1312701738 is 8371072131.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1312701699 and 1312701708.

It is not an unprimeable number, because it can be changed into a prime (1312701737) 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, 72970 + ... + 89162.

It is an arithmetic number, because the mean of its divisors is an integer number (83803950).

Almost surely, 2^1312701738 is an apocalyptic number.

1312701738 is an abundant number, since it is smaller than the sum of its proper divisors (1369024662).

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

1312701738 is a wasteful number, since it uses less digits than its factorization.

1312701738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16486.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 1312701738 is about 36231.2260074097. The cubic root of 1312701738 is about 1094.9358783160.

Adding to 1312701738 its reverse (8371072131), we get a palindrome (9683773869).

The spelling of 1312701738 in words is "one billion, three hundred twelve million, seven hundred one thousand, seven hundred thirty-eight".