1224831 has 8 divisors (see below), whose sum is σ = 1653120. Its totient is φ = 806552.

The previous prime is 1224823. The next prime is 1224851. The reversal of 1224831 is 1384221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1224831 - 2³ = 1224823 is a prime.

It is a super-2 number, since 2×1224831² = 3000421957122, which contains 22 as substring.

1224831 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1224798 and 1224807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2211 + ... + 2708.

It is an arithmetic number, because the mean of its divisors is an integer number (206640).

2^1224831 is an apocalyptic number.

1224831 is a deficient number, since it is larger than the sum of its proper divisors (428289).

1224831 is an equidigital number, since it uses as much as digits as its factorization.

1224831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005.

The product of its digits is 384, while the sum is 21.

The square root of 1224831 is about 1106.7208320078. The cubic root of 1224831 is about 106.9938273436.

The spelling of 1224831 in words is "one million, two hundred twenty-four thousand, eight hundred thirty-one".