1224081 has 12 divisors (see below), whose sum is σ = 1809808. Its totient is φ = 796824.

The previous prime is 1224079. The next prime is 1224089. The reversal of 1224081 is 1804221.

It is not a de Polignac number, because 1224081 - 2¹ = 1224079 is a prime.

It is a super-2 number, since 2×1224081² = 2996748589122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1224089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1195 + ... + 1968.

2^1224081 is an apocalyptic number.

It is an amenable number.

1224081 is a deficient number, since it is larger than the sum of its proper divisors (585727).

1224081 is a wasteful number, since it uses less digits than its factorization.

1224081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212 (or 3209 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1224081 is about 1106.3819412843. The cubic root of 1224081 is about 106.9719843968.

It can be divided in two parts, 12240 and 81, that added together give a palindrome (12321).

The spelling of 1224081 in words is "one million, two hundred twenty-four thousand, eighty-one".