12170755 has 16 divisors (see below), whose sum is σ = 15185664. Its totient is φ = 9354240.

The previous prime is 12170713. The next prime is 12170771. The reversal of 12170755 is 55707121.

12170755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12170755 - 2²¹ = 10073603 is a prime.

It is a Duffinian number.

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, 35947 + ... + 36283.

It is an arithmetic number, because the mean of its divisors is an integer number (949104).

Almost surely, 2^12170755 is an apocalyptic number.

12170755 is a deficient number, since it is larger than the sum of its proper divisors (3014909).

12170755 is a wasteful number, since it uses less digits than its factorization.

12170755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 606.

The product of its (nonzero) digits is 2450, while the sum is 28.

The square root of 12170755 is about 3488.6609178881. The cubic root of 12170755 is about 230.0236585619.

Adding to 12170755 its reverse (55707121), we get a palindrome (67877876).

It can be divided in two parts, 121 and 70755, that added together give a triangular number (70876 = T₃₇₆).

The spelling of 12170755 in words is "twelve million, one hundred seventy thousand, seven hundred fifty-five".