12102193 has 4 divisors (see below), whose sum is σ = 12519540. Its totient is φ = 11684848.

The previous prime is 12102157. The next prime is 12102199. The reversal of 12102193 is 39120121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10419984 + 1682209 = 3228^2 + 1297^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102193 - 2¹³ = 12094001 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12102193.

It is not an unprimeable number, because it can be changed into a prime (12102199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208630 + ... + 208687.

It is an arithmetic number, because the mean of its divisors is an integer number (3129885).

Almost surely, 2^12102193 is an apocalyptic number.

It is an amenable number.

12102193 is a deficient number, since it is larger than the sum of its proper divisors (417347).

12102193 is an equidigital number, since it uses as much as digits as its factorization.

12102193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417346.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 12102193 is about 3478.8206334906. The cubic root of 12102193 is about 229.5909111178.

It can be divided in two parts, 1210 and 2193, that added together give a triangular number (3403 = T₈₂).

The spelling of 12102193 in words is "twelve million, one hundred two thousand, one hundred ninety-three".