13071705 has 16 divisors (see below), whose sum is σ = 21824640. Its totient is φ = 6668288.

The previous prime is 13071689. The next prime is 13071731. The reversal of 13071705 is 50717031.

It is a cyclic number.

It is not a de Polignac number, because 13071705 - 2⁴ = 13071689 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18600 + ... + 19289.

It is an arithmetic number, because the mean of its divisors is an integer number (1364040).

Almost surely, 2^13071705 is an apocalyptic number.

13071705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13071705 is a deficient number, since it is larger than the sum of its proper divisors (8752935).

13071705 is a wasteful number, since it uses less digits than its factorization.

13071705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37920.

The product of its (nonzero) digits is 735, while the sum is 24.

The square root of 13071705 is about 3615.4812957613. The cubic root of 13071705 is about 235.5649903348.

Adding to 13071705 its reverse (50717031), we get a palindrome (63788736).

The spelling of 13071705 in words is "thirteen million, seventy-one thousand, seven hundred five".