13705745 has 8 divisors (see below), whose sum is σ = 17312640. Its totient is φ = 10387440.

The previous prime is 13705739. The next prime is 13705753. The reversal of 13705745 is 54750731.

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

It is not a de Polignac number, because 13705745 - 2¹⁰ = 13704721 is a prime.

It is a Curzon 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, 72041 + ... + 72230.

It is an arithmetic number, because the mean of its divisors is an integer number (2164080).

Almost surely, 2^13705745 is an apocalyptic number.

It is an amenable number.

13705745 is a deficient number, since it is larger than the sum of its proper divisors (3606895).

13705745 is a wasteful number, since it uses less digits than its factorization.

13705745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144295.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 13705745 is about 3702.1270912814. The cubic root of 13705745 is about 239.3136932352.

The spelling of 13705745 in words is "thirteen million, seven hundred five thousand, seven hundred forty-five".