12238775 has 6 divisors (see below), whose sum is σ = 15176112. Its totient is φ = 9791000.

The previous prime is 12238771. The next prime is 12238799. The reversal of 12238775 is 57783221.

It is not a de Polignac number, because 12238775 - 2² = 12238771 is a prime.

It is a super-3 number, since 3×12238775³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12238771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244751 + ... + 244800.

It is an arithmetic number, because the mean of its divisors is an integer number (2529352).

Almost surely, 2^12238775 is an apocalyptic number.

12238775 is a deficient number, since it is larger than the sum of its proper divisors (2937337).

12238775 is an equidigital number, since it uses as much as digits as its factorization.

12238775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489561 (or 489556 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 12238775 is about 3498.3960610543. The cubic root of 12238775 is about 230.4513820006.

The spelling of 12238775 in words is "twelve million, two hundred thirty-eight thousand, seven hundred seventy-five".