12840195 has 16 divisors (see below), whose sum is σ = 20882592. Its totient is φ = 6735360.

The previous prime is 12840193. The next prime is 12840203. The reversal of 12840195 is 59104821.

It is a happy number.

12840195 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 12840195 - 2¹ = 12840193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12840193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6102 + ... + 7931.

It is an arithmetic number, because the mean of its divisors is an integer number (1305162).

Almost surely, 2^12840195 is an apocalyptic number.

12840195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12840195 is a deficient number, since it is larger than the sum of its proper divisors (8042397).

12840195 is a wasteful number, since it uses less digits than its factorization.

12840195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14102.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 12840195 is about 3583.3217829271. The cubic root of 12840195 is about 234.1660192285.

The spelling of 12840195 in words is "twelve million, eight hundred forty thousand, one hundred ninety-five".