12420195 has 8 divisors (see below), whose sum is σ = 19872336. Its totient is φ = 6624096.

The previous prime is 12420151. The next prime is 12420211. The reversal of 12420195 is 59102421.

12420195 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12420195 - 2⁶ = 12420131 is a prime.

It is a super-2 number, since 2×12420195² = 308522487676050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413992 + ... + 414021.

It is an arithmetic number, because the mean of its divisors is an integer number (2484042).

Almost surely, 2^12420195 is an apocalyptic number.

12420195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12420195 is a deficient number, since it is larger than the sum of its proper divisors (7452141).

12420195 is an equidigital number, since it uses as much as digits as its factorization.

12420195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828021.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 12420195 is about 3524.2297030699. The cubic root of 12420195 is about 231.5844908643.

The spelling of 12420195 in words is "twelve million, four hundred twenty thousand, one hundred ninety-five".