1220073 has 16 divisors (see below), whose sum is σ = 1762560. Its totient is φ = 747776.

The previous prime is 1220071. The next prime is 1220077. The reversal of 1220073 is 3700221.

It is a cyclic number.

It is not a de Polignac number, because 1220073 - 2¹ = 1220071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1220071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2143 + ... + 2651.

It is an arithmetic number, because the mean of its divisors is an integer number (110160).

2^1220073 is an apocalyptic number.

It is an amenable number.

1220073 is a deficient number, since it is larger than the sum of its proper divisors (542487).

1220073 is a wasteful number, since it uses less digits than its factorization.

1220073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 1220073 is about 1104.5691467717. The cubic root of 1220073 is about 106.8551041929.

Adding to 1220073 its reverse (3700221), we get a palindrome (4920294).

The spelling of 1220073 in words is "one million, two hundred twenty thousand, seventy-three".