1220093 has 4 divisors (see below), whose sum is σ = 1394400. Its totient is φ = 1045788.

The previous prime is 1220077. The next prime is 1220099. The reversal of 1220093 is 3900221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3900221 = 13 ⋅300017.

It is a cyclic number.

It is not a de Polignac number, because 1220093 - 2⁴ = 1220077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87143 + ... + 87156.

It is an arithmetic number, because the mean of its divisors is an integer number (348600).

2^1220093 is an apocalyptic number.

It is an amenable number.

1220093 is a deficient number, since it is larger than the sum of its proper divisors (174307).

1220093 is an equidigital number, since it uses as much as digits as its factorization.

1220093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174306.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1220093 is about 1104.5782000384. The cubic root of 1220093 is about 106.8556880624.

The spelling of 1220093 in words is "one million, two hundred twenty thousand, ninety-three".