13281983 has 16 divisors (see below), whose sum is σ = 15706656. Its totient is φ = 11072640.

The previous prime is 13281973. The next prime is 13282019. The reversal of 13281983 is 38918231.

It is a cyclic number.

It is not a de Polignac number, because 13281983 - 2⁴ = 13281967 is a prime.

It is a super-2 number, since 2×13281983² = 352822144824578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13281973) 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, 41741 + ... + 42057.

It is an arithmetic number, because the mean of its divisors is an integer number (981666).

Almost surely, 2^13281983 is an apocalyptic number.

13281983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13281983 is a deficient number, since it is larger than the sum of its proper divisors (2424673).

13281983 is a wasteful number, since it uses less digits than its factorization.

13281983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634.

The product of its digits is 10368, while the sum is 35.

The square root of 13281983 is about 3644.4454996611. The cubic root of 13281983 is about 236.8214159073.

The spelling of 13281983 in words is "thirteen million, two hundred eighty-one thousand, nine hundred eighty-three".