12199005 has 80 divisors (see below), whose sum is σ = 26995584. Its totient is φ = 5132160.

The previous prime is 12199001. The next prime is 12199021. The reversal of 12199005 is 50099121.

It is a happy number.

12199005 is nontrivially palindromic in base 2.

12199005 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 12199005 - 2² = 12199001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 12199005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12199001) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 36690 + ... + 37020.

Almost surely, 2^12199005 is an apocalyptic number.

12199005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12199005 is an abundant number, since it is smaller than the sum of its proper divisors (14796579).

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

12199005 is a wasteful number, since it uses less digits than its factorization.

12199005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 12199005 is about 3492.7074025747. The cubic root of 12199005 is about 230.2014932460.

The spelling of 12199005 in words is "twelve million, one hundred ninety-nine thousand, five".