1224127 has 4 divisors (see below), whose sum is σ = 1229256. Its totient is φ = 1219000.

The previous prime is 1224121. The next prime is 1224131. The reversal of 1224127 is 7214221.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1224127 is a prime.

It is a Duffinian number.

1224127 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188 + ... + 2689.

It is an arithmetic number, because the mean of its divisors is an integer number (307314).

2^1224127 is an apocalyptic number.

1224127 is a deficient number, since it is larger than the sum of its proper divisors (5129).

1224127 is an equidigital number, since it uses as much as digits as its factorization.

1224127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5128.

The product of its digits is 224, while the sum is 19.

The square root of 1224127 is about 1106.4027295700. The cubic root of 1224127 is about 106.9733243543.

Adding to 1224127 its reverse (7214221), we get a palindrome (8438348).

The spelling of 1224127 in words is "one million, two hundred twenty-four thousand, one hundred twenty-seven".