1224947 has 4 divisors (see below), whose sum is σ = 1227216. Its totient is φ = 1222680.

The previous prime is 1224943. The next prime is 1224953. The reversal of 1224947 is 7494221.

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

It is a cyclic number.

It is not a de Polignac number, because 1224947 - 2² = 1224943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224943) 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 3 ways as a sum of consecutive naturals, for example, 197 + ... + 1577.

It is an arithmetic number, because the mean of its divisors is an integer number (306804).

2^1224947 is an apocalyptic number.

1224947 is a deficient number, since it is larger than the sum of its proper divisors (2269).

1224947 is an equidigital number, since it uses as much as digits as its factorization.

1224947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268.

The product of its digits is 4032, while the sum is 29.

The square root of 1224947 is about 1106.7732378405. The cubic root of 1224947 is about 106.9972049231.

The spelling of 1224947 in words is "one million, two hundred twenty-four thousand, nine hundred forty-seven".