22197146 has 8 divisors (see below), whose sum is σ = 33369024. Its totient is φ = 11074140.

The previous prime is 22197127. The next prime is 22197163. The reversal of 22197146 is 64179122.

It is a happy number.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11060 + ... + 12911.

It is an arithmetic number, because the mean of its divisors is an integer number (4171128).

Almost surely, 2^22197146 is an apocalyptic number.

22197146 is a deficient number, since it is larger than the sum of its proper divisors (11171878).

22197146 is a wasteful number, since it uses less digits than its factorization.

22197146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24436.

The product of its digits is 6048, while the sum is 32.

The square root of 22197146 is about 4711.3847221385. The cubic root of 22197146 is about 281.0384314402.

The spelling of 22197146 in words is "twenty-two million, one hundred ninety-seven thousand, one hundred forty-six".