13910505 has 32 divisors (see below), whose sum is σ = 26936064. Its totient is φ = 5984256.

The previous prime is 13910503. The next prime is 13910531. The reversal of 13910505 is 50501931.

It is not a de Polignac number, because 13910505 - 2¹ = 13910503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13910503) 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 31 ways as a sum of consecutive naturals, for example, 2112 + ... + 5681.

It is an arithmetic number, because the mean of its divisors is an integer number (841752).

Almost surely, 2^13910505 is an apocalyptic number.

13910505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13910505 is a deficient number, since it is larger than the sum of its proper divisors (13025559).

13910505 is a wasteful number, since it uses less digits than its factorization.

13910505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7825.

The product of its (nonzero) digits is 675, while the sum is 24.

The square root of 13910505 is about 3729.6789406060. The cubic root of 13910505 is about 240.4995670539.

The spelling of 13910505 in words is "thirteen million, nine hundred ten thousand, five hundred five".