12298126 has 4 divisors (see below), whose sum is σ = 18447192. Its totient is φ = 6149062.

The previous prime is 12298093. The next prime is 12298127. The reversal of 12298126 is 62189221.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12298126² = 302487806223752, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12298127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3074530 + ... + 3074533.

It is an arithmetic number, because the mean of its divisors is an integer number (4611798).

Almost surely, 2^12298126 is an apocalyptic number.

12298126 is the 1875-th centered heptagonal number.

12298126 is a deficient number, since it is larger than the sum of its proper divisors (6149066).

12298126 is an equidigital number, since it uses as much as digits as its factorization.

12298126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6149065.

The product of its digits is 3456, while the sum is 31.

The square root of 12298126 is about 3506.8684035760. The cubic root of 12298126 is about 230.8233002137.

The spelling of 12298126 in words is "twelve million, two hundred ninety-eight thousand, one hundred twenty-six".