1223481 has 32 divisors (see below), whose sum is σ = 2016000. Its totient is φ = 658560.

The previous prime is 1223471. The next prime is 1223489. The reversal of 1223481 is 1843221.

It is not a de Polignac number, because 1223481 - 2⁵ = 1223449 is a prime.

It is a super-2 number, since 2×1223481² = 2993811514722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1223489) 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 31 ways as a sum of consecutive naturals, for example, 29821 + ... + 29861.

It is an arithmetic number, because the mean of its divisors is an integer number (63000).

2^1223481 is an apocalyptic number.

It is an amenable number.

1223481 is a deficient number, since it is larger than the sum of its proper divisors (792519).

1223481 is an equidigital number, since it uses as much as digits as its factorization.

1223481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 80 counting only the distinct ones).

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

The square root of 1223481 is about 1106.1107539483. The cubic root of 1223481 is about 106.9545036146.

The spelling of 1223481 in words is "one million, two hundred twenty-three thousand, four hundred eighty-one".