1306462681 has 16 divisors (see below), whose sum is σ = 1353538368. Its totient is φ = 1260388800.

The previous prime is 1306462657. The next prime is 1306462691. The reversal of 1306462681 is 1862646031.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1306462681 is a prime.

It is a super-2 number, since 2×1306462681² = 3413689473691415522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1306462681.

It is not an unprimeable number, because it can be changed into a prime (1306462601) 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, 1196946 + ... + 1198036.

It is an arithmetic number, because the mean of its divisors is an integer number (84596148).

Almost surely, 2^1306462681 is an apocalyptic number.

It is an amenable number.

1306462681 is a deficient number, since it is larger than the sum of its proper divisors (47075687).

1306462681 is a wasteful number, since it uses less digits than its factorization.

1306462681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 1306462681 is about 36145.0229077255. The cubic root of 1306462681 is about 1093.1984390036.

The spelling of 1306462681 in words is "one billion, three hundred six million, four hundred sixty-two thousand, six hundred eighty-one".