12159398 has 4 divisors (see below), whose sum is σ = 18239100. Its totient is φ = 6079698.

The previous prime is 12159397. The next prime is 12159401. The reversal of 12159398 is 89395121.

12159398 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-3 number, since 3×12159398³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12159397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3039848 + ... + 3039851.

It is an arithmetic number, because the mean of its divisors is an integer number (4559775).

Almost surely, 2^12159398 is an apocalyptic number.

12159398 is a deficient number, since it is larger than the sum of its proper divisors (6079702).

12159398 is an equidigital number, since it uses as much as digits as its factorization.

12159398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6079701.

The product of its digits is 19440, while the sum is 38.

The square root of 12159398 is about 3487.0328360943. The cubic root of 12159398 is about 229.9520883188.

The spelling of 12159398 in words is "twelve million, one hundred fifty-nine thousand, three hundred ninety-eight".