13906991201 has 4 divisors (see below), whose sum is σ = 13935315504. Its totient is φ = 13878666900.

The previous prime is 13906991173. The next prime is 13906991207. The reversal of 13906991201 is 10219960931.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10219960931 = 41513 ⋅246187.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13906991201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13906991207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14161415 + ... + 14162396.

It is an arithmetic number, because the mean of its divisors is an integer number (3483828876).

Almost surely, 2^13906991201 is an apocalyptic number.

It is an amenable number.

13906991201 is a deficient number, since it is larger than the sum of its proper divisors (28324303).

13906991201 is an equidigital number, since it uses as much as digits as its factorization.

13906991201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28324302.

The product of its (nonzero) digits is 26244, while the sum is 41.

The spelling of 13906991201 in words is "thirteen billion, nine hundred six million, nine hundred ninety-one thousand, two hundred one".