3103681 has 8 divisors (see below), whose sum is σ = 3568320. Its totient is φ = 2644368.

The previous prime is 3103679. The next prime is 3103687. The reversal of 3103681 is 1863013.

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 3103681 - 2¹ = 3103679 is a prime.

It is a super-2 number, since 2×3103681² = 19265671499522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3103687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15 + ... + 2491.

It is an arithmetic number, because the mean of its divisors is an integer number (446040).

Almost surely, 2^3103681 is an apocalyptic number.

It is an amenable number.

3103681 is a deficient number, since it is larger than the sum of its proper divisors (464639).

3103681 is a wasteful number, since it uses less digits than its factorization.

3103681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663.

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

The square root of 3103681 is about 1761.7267097935. The cubic root of 3103681 is about 145.8676632830.

Adding to 3103681 its reverse (1863013), we get a palindrome (4966694).

It can be divided in two parts, 3 and 103681, that added together give a square (103684 = 322²).

The spelling of 3103681 in words is "three million, one hundred three thousand, six hundred eighty-one".