13731845 has 8 divisors (see below), whose sum is σ = 16632864. Its totient is φ = 10882384.

The previous prime is 13731829. The next prime is 13731863. The reversal of 13731845 is 54813731.

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 13731845 - 2⁴ = 13731829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12299 + ... + 13368.

It is an arithmetic number, because the mean of its divisors is an integer number (2079108).

Almost surely, 2^13731845 is an apocalyptic number.

It is an amenable number.

13731845 is a deficient number, since it is larger than the sum of its proper divisors (2901019).

13731845 is a wasteful number, since it uses less digits than its factorization.

13731845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25779.

The product of its digits is 10080, while the sum is 32.

The square root of 13731845 is about 3705.6504152443. The cubic root of 13731845 is about 239.4655061368.

The spelling of 13731845 in words is "thirteen million, seven hundred thirty-one thousand, eight hundred forty-five".