13909011 has 4 divisors (see below), whose sum is σ = 18545352. Its totient is φ = 9272672.

The previous prime is 13908967. The next prime is 13909019. The reversal of 13909011 is 11090931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11090931 = 3 ⋅3696977.

It is a cyclic number.

It is not a de Polignac number, because 13909011 - 2⁷ = 13908883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13909019) 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, 2318166 + ... + 2318171.

It is an arithmetic number, because the mean of its divisors is an integer number (4636338).

Almost surely, 2^13909011 is an apocalyptic number.

13909011 is a deficient number, since it is larger than the sum of its proper divisors (4636341).

13909011 is an equidigital number, since it uses as much as digits as its factorization.

13909011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636340.

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 13909011 is about 3729.4786498920. The cubic root of 13909011 is about 240.4909567933.

Adding to 13909011 its reverse (11090931), we get a palindrome (24999942).

It can be divided in two parts, 1390 and 9011, that added together give a palindrome (10401).

The spelling of 13909011 in words is "thirteen million, nine hundred nine thousand, eleven".