1307718285 has 16 divisors (see below), whose sum is σ = 2215429056. Its totient is φ = 656423168.

The previous prime is 1307718281. The next prime is 1307718299. The reversal of 1307718285 is 5828177031.

It is a cyclic number.

It is not a de Polignac number, because 1307718285 - 2² = 1307718281 is a prime.

It is a super-2 number, since 2×1307718285² = 3420254225846682450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307718281) 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, 2563899 + ... + 2564408.

It is an arithmetic number, because the mean of its divisors is an integer number (138464316).

Almost surely, 2^1307718285 is an apocalyptic number.

1307718285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1307718285 is a deficient number, since it is larger than the sum of its proper divisors (907710771).

1307718285 is a wasteful number, since it uses less digits than its factorization.

1307718285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128332.

The product of its (nonzero) digits is 94080, while the sum is 42.

The square root of 1307718285 is about 36162.3877115436. The cubic root of 1307718285 is about 1093.5485408109.

The spelling of 1307718285 in words is "one billion, three hundred seven million, seven hundred eighteen thousand, two hundred eighty-five".