1312301747 has 8 divisors (see below), whose sum is σ = 1381785600. Its totient is φ = 1242859464.

The previous prime is 1312301741. The next prime is 1312301761. The reversal of 1312301747 is 7471032131.

It is a happy number.

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

It is not a de Polignac number, because 1312301747 - 2²⁰ = 1311253171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312301741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70718 + ... + 87324.

It is an arithmetic number, because the mean of its divisors is an integer number (172723200).

Almost surely, 2^1312301747 is an apocalyptic number.

1312301747 is a deficient number, since it is larger than the sum of its proper divisors (69483853).

1312301747 is a wasteful number, since it uses less digits than its factorization.

1312301747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20785.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 1312301747 is about 36225.7056107952. The cubic root of 1312301747 is about 1094.8246550337.

Adding to 1312301747 its reverse (7471032131), we get a palindrome (8783333878).

The spelling of 1312301747 in words is "one billion, three hundred twelve million, three hundred one thousand, seven hundred forty-seven".