1213193 has 4 divisors (see below), whose sum is σ = 1246020. Its totient is φ = 1180368.

The previous prime is 1213189. The next prime is 1213213. The reversal of 1213193 is 3913121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 868624 + 344569 = 932^2 + 587^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213193 - 2² = 1213189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1213133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16358 + ... + 16431.

It is an arithmetic number, because the mean of its divisors is an integer number (311505).

2^1213193 is an apocalyptic number.

It is an amenable number.

1213193 is a deficient number, since it is larger than the sum of its proper divisors (32827).

1213193 is an equidigital number, since it uses as much as digits as its factorization.

1213193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32826.

The product of its digits is 162, while the sum is 20.

The square root of 1213193 is about 1101.4504074174. The cubic root of 1213193 is about 106.6538732486.

The spelling of 1213193 in words is "one million, two hundred thirteen thousand, one hundred ninety-three".