13151705 has 16 divisors (see below), whose sum is σ = 18986880. Its totient is φ = 8543232.

The previous prime is 13151689. The next prime is 13151707. The reversal of 13151705 is 50715131.

It is a cyclic number.

It is not a de Polignac number, because 13151705 - 2⁴ = 13151689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13151707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9224 + ... + 10553.

It is an arithmetic number, because the mean of its divisors is an integer number (1186680).

Almost surely, 2^13151705 is an apocalyptic number.

It is an amenable number.

13151705 is a deficient number, since it is larger than the sum of its proper divisors (5835175).

13151705 is a wasteful number, since it uses less digits than its factorization.

13151705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19808.

The product of its (nonzero) digits is 525, while the sum is 23.

The square root of 13151705 is about 3626.5279538424. The cubic root of 13151705 is about 236.0445728796.

Adding to 13151705 its reverse (50715131), we get a palindrome (63866836).

The spelling of 13151705 in words is "thirteen million, one hundred fifty-one thousand, seven hundred five".