13783071 has 4 divisors (see below), whose sum is σ = 18377432. Its totient is φ = 9188712.

The previous prime is 13783069. The next prime is 13783097. The reversal of 13783071 is 17038731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17038731 = 3 ⋅5679577.

It is not a de Polignac number, because 13783071 - 2¹ = 13783069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13783001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2297176 + ... + 2297181.

It is an arithmetic number, because the mean of its divisors is an integer number (4594358).

Almost surely, 2^13783071 is an apocalyptic number.

13783071 is a deficient number, since it is larger than the sum of its proper divisors (4594361).

13783071 is an equidigital number, since it uses as much as digits as its factorization.

13783071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594360.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 13783071 is about 3712.5558581656. Note that the first 3 decimals coincide. The cubic root of 13783071 is about 239.7629082194.

The spelling of 13783071 in words is "thirteen million, seven hundred eighty-three thousand, seventy-one".