1223071 has 8 divisors (see below), whose sum is σ = 1308384. Its totient is φ = 1140480.

The previous prime is 1223059. The next prime is 1223077. The reversal of 1223071 is 1703221.

It is a happy number.

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 1223071 - 2⁵ = 1223039 is a prime.

It is a Duffinian number.

1223071 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223077) 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, 295 + ... + 1591.

It is an arithmetic number, because the mean of its divisors is an integer number (163548).

2^1223071 is an apocalyptic number.

1223071 is a deficient number, since it is larger than the sum of its proper divisors (85313).

1223071 is a wasteful number, since it uses less digits than its factorization.

1223071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1361.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1223071 is about 1105.9254043560. The cubic root of 1223071 is about 106.9425551261.

Adding to 1223071 its reverse (1703221), we get a palindrome (2926292).

The spelling of 1223071 in words is "one million, two hundred twenty-three thousand, seventy-one".