12195570 has 32 divisors (see below), whose sum is σ = 30063168. Its totient is φ = 3163968.

The previous prime is 12195569. The next prime is 12195577. The reversal of 12195570 is 7559121.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12195577) 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, 4384 + ... + 6603.

It is an arithmetic number, because the mean of its divisors is an integer number (939474).

Almost surely, 2^12195570 is an apocalyptic number.

12195570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12195570 is an abundant number, since it is smaller than the sum of its proper divisors (17867598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12195570 is a wasteful number, since it uses less digits than its factorization.

12195570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11034.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 12195570 is about 3492.2156290813. The cubic root of 12195570 is about 230.1798844793.

The spelling of 12195570 in words is "twelve million, one hundred ninety-five thousand, five hundred seventy".