13937305 has 4 divisors (see below), whose sum is σ = 16724772. Its totient is φ = 11149840.

The previous prime is 13937291. The next prime is 13937351. The reversal of 13937305 is 50373931.

13937305 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2350089 + 11587216 = 1533^2 + 3404^2 .

It is not a de Polignac number, because 13937305 - 2⁷ = 13937177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1393726 + ... + 1393735.

It is an arithmetic number, because the mean of its divisors is an integer number (4181193).

Almost surely, 2^13937305 is an apocalyptic number.

It is an amenable number.

13937305 is a deficient number, since it is larger than the sum of its proper divisors (2787467).

13937305 is an equidigital number, since it uses as much as digits as its factorization.

13937305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2787466.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 13937305 is about 3733.2700143440. The cubic root of 13937305 is about 240.6539169161.

The spelling of 13937305 in words is "thirteen million, nine hundred thirty-seven thousand, three hundred five".