12219454 has 8 divisors (see below), whose sum is σ = 19739160. Its totient is φ = 5639736.

The previous prime is 12219443. The next prime is 12219461. The reversal of 12219454 is 45491221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234964 + ... + 235015.

It is an arithmetic number, because the mean of its divisors is an integer number (2467395).

Almost surely, 2^12219454 is an apocalyptic number.

12219454 is a deficient number, since it is larger than the sum of its proper divisors (7519706).

12219454 is a wasteful number, since it uses less digits than its factorization.

12219454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469994.

The product of its digits is 2880, while the sum is 28.

The square root of 12219454 is about 3495.6335620314. The cubic root of 12219454 is about 230.3300491535.

The spelling of 12219454 in words is "twelve million, two hundred nineteen thousand, four hundred fifty-four".