12199023 has 6 divisors (see below), whose sum is σ = 17620824. Its totient is φ = 8132676.

The previous prime is 12199021. The next prime is 12199037. The reversal of 12199023 is 32099121.

It is not a de Polignac number, because 12199023 - 2¹ = 12199021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12199021) 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 5 ways as a sum of consecutive naturals, for example, 677715 + ... + 677732.

It is an arithmetic number, because the mean of its divisors is an integer number (2936804).

Almost surely, 2^12199023 is an apocalyptic number.

12199023 is a deficient number, since it is larger than the sum of its proper divisors (5421801).

12199023 is a wasteful number, since it uses less digits than its factorization.

12199023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355453 (or 1355450 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 12199023 is about 3492.7099793713. The cubic root of 12199023 is about 230.2016064691.

The spelling of 12199023 in words is "twelve million, one hundred ninety-nine thousand, twenty-three".