12198951 has 16 divisors (see below), whose sum is σ = 18173920. Its totient is φ = 8087040.

The previous prime is 12198941. The next prime is 12198959. The reversal of 12198951 is 15989121.

It is not a de Polignac number, because 12198951 - 2⁵ = 12198919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12198959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4041 + ... + 6381.

It is an arithmetic number, because the mean of its divisors is an integer number (1135870).

Almost surely, 2^12198951 is an apocalyptic number.

12198951 is a deficient number, since it is larger than the sum of its proper divisors (5974969).

12198951 is a wasteful number, since it uses less digits than its factorization.

12198951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2543 (or 2537 counting only the distinct ones).

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

The square root of 12198951 is about 3492.6996721734. The cubic root of 12198951 is about 230.2011535763.

The spelling of 12198951 in words is "twelve million, one hundred ninety-eight thousand, nine hundred fifty-one".