12138445214 has 8 divisors (see below), whose sum is σ = 20808763248. Its totient is φ = 5202190800.

The previous prime is 12138445211. The next prime is 12138445217. The reversal of 12138445214 is 41254483121.

It is an interprime number because it is at equal distance from previous prime (12138445211) and next prime (12138445217).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12138445211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433515887 + ... + 433515914.

It is an arithmetic number, because the mean of its divisors is an integer number (2601095406).

Almost surely, 2^12138445214 is an apocalyptic number.

12138445214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12138445214 is a deficient number, since it is larger than the sum of its proper divisors (8670318034).

12138445214 is an equidigital number, since it uses as much as digits as its factorization.

12138445214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867031810.

The product of its digits is 30720, while the sum is 35.

The spelling of 12138445214 in words is "twelve billion, one hundred thirty-eight million, four hundred forty-five thousand, two hundred fourteen".