12163438 has 8 divisors (see below), whose sum is σ = 20851632. Its totient is φ = 5212896.

The previous prime is 12163423. The next prime is 12163519. The reversal of 12163438 is 83436121.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434395 + ... + 434422.

It is an arithmetic number, because the mean of its divisors is an integer number (2606454).

Almost surely, 2^12163438 is an apocalyptic number.

12163438 is a deficient number, since it is larger than the sum of its proper divisors (8688194).

12163438 is an equidigital number, since it uses as much as digits as its factorization.

12163438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868826.

The product of its digits is 3456, while the sum is 28.

The square root of 12163438 is about 3487.6120770521. The cubic root of 12163438 is about 229.9775529448.

Adding to 12163438 its reverse (83436121), we get a palindrome (95599559).

The spelling of 12163438 in words is "twelve million, one hundred sixty-three thousand, four hundred thirty-eight".