13931061 has 4 divisors (see below), whose sum is σ = 18574752. Its totient is φ = 9287372.

The previous prime is 13931039. The next prime is 13931069. The reversal of 13931061 is 16013931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13931061 - 2¹³ = 13922869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13931069) 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, 2321841 + ... + 2321846.

It is an arithmetic number, because the mean of its divisors is an integer number (4643688).

Almost surely, 2^13931061 is an apocalyptic number.

It is an amenable number.

13931061 is a deficient number, since it is larger than the sum of its proper divisors (4643691).

13931061 is an equidigital number, since it uses as much as digits as its factorization.

13931061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643690.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 13931061 is about 3732.4336564767. The cubic root of 13931061 is about 240.6179733935.

Adding to 13931061 its reverse (16013931), we get a palindrome (29944992).

The spelling of 13931061 in words is "thirteen million, nine hundred thirty-one thousand, sixty-one".