1303681 has 8 divisors (see below), whose sum is σ = 1340640. Its totient is φ = 1267392.

The previous prime is 1303669. The next prime is 1303693. The reversal of 1303681 is 1863031.

It is an interprime number because it is at equal distance from previous prime (1303669) and next prime (1303693).

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

It is a cyclic number.

It is not a de Polignac number, because 1303681 - 2⁷ = 1303553 is a prime.

It is a super-2 number, since 2×1303681² = 3399168299522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303481) 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, 9310 + ... + 9448.

It is an arithmetic number, because the mean of its divisors is an integer number (167580).

2^1303681 is an apocalyptic number.

It is an amenable number.

1303681 is a deficient number, since it is larger than the sum of its proper divisors (36959).

1303681 is a wasteful number, since it uses less digits than its factorization.

1303681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1303681 is about 1141.7885093133. The cubic root of 1303681 is about 109.2422019300.

The spelling of 1303681 in words is "one million, three hundred three thousand, six hundred eighty-one".