12915198 has 12 divisors (see below), whose sum is σ = 27982968. Its totient is φ = 4305060.

The previous prime is 12915197. The next prime is 12915209. The reversal of 12915198 is 89151921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12915197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358738 + ... + 358773.

It is an arithmetic number, because the mean of its divisors is an integer number (2331914).

Almost surely, 2^12915198 is an apocalyptic number.

12915198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12915198 is an abundant number, since it is smaller than the sum of its proper divisors (15067770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12915198 is a wasteful number, since it uses less digits than its factorization.

12915198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717519 (or 717516 counting only the distinct ones).

The product of its digits is 6480, while the sum is 36.

The square root of 12915198 is about 3593.7721129754. The cubic root of 12915198 is about 234.6210763743.

The spelling of 12915198 in words is "twelve million, nine hundred fifteen thousand, one hundred ninety-eight".