1223081 has 8 divisors (see below), whose sum is σ = 1275264. Its totient is φ = 1172080.

The previous prime is 1223077. The next prime is 1223083. The reversal of 1223081 is 1803221.

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 1223081 - 2² = 1223077 is a prime.

It is a super-2 number, since 2×1223081² = 2991854265122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223083) 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, 2246 + ... + 2736.

It is an arithmetic number, because the mean of its divisors is an integer number (159408).

2^1223081 is an apocalyptic number.

It is an amenable number.

1223081 is a deficient number, since it is larger than the sum of its proper divisors (52183).

1223081 is an equidigital number, since it uses as much as digits as its factorization.

1223081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1223081 is about 1105.9299254474. The cubic root of 1223081 is about 106.9428465844.

The spelling of 1223081 in words is "one million, two hundred twenty-three thousand, eighty-one".