13250705 has 8 divisors (see below), whose sum is σ = 17124072. Its totient is φ = 9785088.

The previous prime is 13250693. The next prime is 13250707. The reversal of 13250705 is 50705231.

It can be written as a sum of positive squares in 4 ways, for example, as 341056 + 12909649 = 584^2 + 3593^2 .

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 13250705 - 2¹² = 13246609 is a prime.

It is a super-3 number, since 3×13250705³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13250707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101864 + ... + 101993.

It is an arithmetic number, because the mean of its divisors is an integer number (2140509).

Almost surely, 2^13250705 is an apocalyptic number.

It is an amenable number.

13250705 is a deficient number, since it is larger than the sum of its proper divisors (3873367).

13250705 is a wasteful number, since it uses less digits than its factorization.

13250705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203875.

The product of its (nonzero) digits is 1050, while the sum is 23.

The square root of 13250705 is about 3640.1517825497. The cubic root of 13250705 is about 236.6353713385.

Adding to 13250705 its reverse (50705231), we get a palindrome (63955936).

The spelling of 13250705 in words is "thirteen million, two hundred fifty thousand, seven hundred five".