12705170 has 16 divisors (see below), whose sum is σ = 22920408. Its totient is φ = 5070720.

The previous prime is 12705163. The next prime is 12705179. The reversal of 12705170 is 7150721.

It is a happy number.

12705170 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7991929 + 4713241 = 2827^2 + 2171^2 .

It is a super-2 number, since 2×12705170² = 322842689457800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12705179) 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, 4430 + ... + 6710.

Almost surely, 2^12705170 is an apocalyptic number.

12705170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12705170 is a deficient number, since it is larger than the sum of its proper divisors (10215238).

12705170 is a wasteful number, since it uses less digits than its factorization.

12705170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845.

The product of its (nonzero) digits is 490, while the sum is 23.

The square root of 12705170 is about 3564.4312309259. The cubic root of 12705170 is about 233.3423103122.

Adding to 12705170 its reverse (7150721), we get a palindrome (19855891).

The spelling of 12705170 in words is "twelve million, seven hundred five thousand, one hundred seventy".