1223199 has 6 divisors (see below), whose sum is σ = 1766856. Its totient is φ = 815460.

The previous prime is 1223197. The next prime is 1223203. The reversal of 1223199 is 9913221.

It is not a de Polignac number, because 1223199 - 2¹ = 1223197 is a prime.

1223199 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67947 + ... + 67964.

It is an arithmetic number, because the mean of its divisors is an integer number (294476).

2^1223199 is an apocalyptic number.

1223199 is a deficient number, since it is larger than the sum of its proper divisors (543657).

1223199 is a wasteful number, since it uses less digits than its factorization.

1223199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135917 (or 135914 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 1223199 is about 1105.9832729296. The cubic root of 1223199 is about 106.9462856726.

It can be divided in two parts, 122 and 3199, that added together give a triangular number (3321 = T₈₁).

The spelling of 1223199 in words is "one million, two hundred twenty-three thousand, one hundred ninety-nine".