13083981 has 8 divisors (see below), whose sum is σ = 17465280. Its totient is φ = 8712672.

The previous prime is 13083971. The next prime is 13083991. The reversal of 13083981 is 18938031.

It is an interprime number because it is at equal distance from previous prime (13083971) and next prime (13083991).

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

It is a de Polignac number, because none of the positive numbers 2^k-13083981 is a prime.

It is a super-2 number, since 2×13083981² = 342381117616722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13083971) 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, 1456 + ... + 5318.

It is an arithmetic number, because the mean of its divisors is an integer number (2183160).

Almost surely, 2^13083981 is an apocalyptic number.

It is an amenable number.

13083981 is a deficient number, since it is larger than the sum of its proper divisors (4381299).

13083981 is a wasteful number, since it uses less digits than its factorization.

13083981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 13083981 is about 3617.1785966413. The cubic root of 13083981 is about 235.6387091302.

The spelling of 13083981 in words is "thirteen million, eighty-three thousand, nine hundred eighty-one".