1220193 has 12 divisors (see below), whose sum is σ = 1898260. Its totient is φ = 750816.

The previous prime is 1220171. The next prime is 1220203. The reversal of 1220193 is 3910221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 788544 + 431649 = 888^2 + 657^2 .

It is not a de Polignac number, because 1220193 - 2¹⁴ = 1203809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1220393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5098 + ... + 5331.

2^1220193 is an apocalyptic number.

1220193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1220193 is a deficient number, since it is larger than the sum of its proper divisors (678067).

1220193 is a wasteful number, since it uses less digits than its factorization.

1220193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10448 (or 10445 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1220193 is about 1104.6234652586. The cubic root of 1220193 is about 106.8586073145.

The spelling of 1220193 in words is "one million, two hundred twenty thousand, one hundred ninety-three".