1224135 has 24 divisors (see below), whose sum is σ = 2315664. Its totient is φ = 593280.

The previous prime is 1224133. The next prime is 1224149. The reversal of 1224135 is 5314221.

It is not a de Polignac number, because 1224135 - 2¹ = 1224133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 742 + ... + 1731.

It is an arithmetic number, because the mean of its divisors is an integer number (96486).

2^1224135 is an apocalyptic number.

1224135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1224135 is a deficient number, since it is larger than the sum of its proper divisors (1091529).

1224135 is a wasteful number, since it uses less digits than its factorization.

1224135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495 (or 2492 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1224135 is about 1106.4063448842. The cubic root of 1224135 is about 106.9735573870.

Adding to 1224135 its reverse (5314221), we get a palindrome (6538356).

The spelling of 1224135 in words is "one million, two hundred twenty-four thousand, one hundred thirty-five".