1224019 has 4 divisors (see below), whose sum is σ = 1236240. Its totient is φ = 1211800.

The previous prime is 1223993. The next prime is 1224029. The reversal of 1224019 is 9104221.

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 1224019 - 2⁵ = 1223987 is a prime.

It is a super-2 number, since 2×1224019² = 2996445024722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223987 and 1224005.

It is not an unprimeable number, because it can be changed into a prime (1224029) 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, 5959 + ... + 6160.

It is an arithmetic number, because the mean of its divisors is an integer number (309060).

2^1224019 is an apocalyptic number.

1224019 is a deficient number, since it is larger than the sum of its proper divisors (12221).

1224019 is a wasteful number, since it uses less digits than its factorization.

1224019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12220.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1224019 is about 1106.3539216724. The cubic root of 1224019 is about 106.9701783140.

The spelling of 1224019 in words is "one million, two hundred twenty-four thousand, nineteen".