13905331 has 8 divisors (see below), whose sum is σ = 15217344. Its totient is φ = 12601320.

The previous prime is 13905319. The next prime is 13905349. The reversal of 13905331 is 13350931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13905331 - 2⁵ = 13905299 is a prime.

It is a super-2 number, since 2×13905331² = 386716460439122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13905296 and 13905305.

It is not an unprimeable number, because it can be changed into a prime (13905301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1996 + ... + 5638.

It is an arithmetic number, because the mean of its divisors is an integer number (1902168).

Almost surely, 2^13905331 is an apocalyptic number.

13905331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13905331 is a deficient number, since it is larger than the sum of its proper divisors (1312013).

13905331 is a wasteful number, since it uses less digits than its factorization.

13905331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001.

The product of its (nonzero) digits is 1215, while the sum is 25.

The square root of 13905331 is about 3728.9852507083. The cubic root of 13905331 is about 240.4697454893.

The spelling of 13905331 in words is "thirteen million, nine hundred five thousand, three hundred thirty-one".