1307312733 has 16 divisors (see below), whose sum is σ = 1856298816. Its totient is φ = 815527680.

The previous prime is 1307312729. The next prime is 1307312753. The reversal of 1307312733 is 3372137031.

It is not a de Polignac number, because 1307312733 - 2² = 1307312729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1307312733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307312753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65263 + ... + 82908.

It is an arithmetic number, because the mean of its divisors is an integer number (116018676).

Almost surely, 2^1307312733 is an apocalyptic number.

It is an amenable number.

1307312733 is a deficient number, since it is larger than the sum of its proper divisors (548986083).

1307312733 is a wasteful number, since it uses less digits than its factorization.

1307312733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148364.

The product of its (nonzero) digits is 7938, while the sum is 30.

The square root of 1307312733 is about 36156.7799036363. The cubic root of 1307312733 is about 1093.4354846947.

Adding to 1307312733 its reverse (3372137031), we get a palindrome (4679449764).

The spelling of 1307312733 in words is "one billion, three hundred seven million, three hundred twelve thousand, seven hundred thirty-three".