1223911 has 8 divisors (see below), whose sum is σ = 1361024. Its totient is φ = 1092960.

The previous prime is 1223897. The next prime is 1223921. The reversal of 1223911 is 1193221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223911 - 2⁵ = 1223879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116 + ... + 1921.

It is an arithmetic number, because the mean of its divisors is an integer number (170128).

2^1223911 is an apocalyptic number.

1223911 is a deficient number, since it is larger than the sum of its proper divisors (137113).

1223911 is a wasteful number, since it uses less digits than its factorization.

1223911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3081.

The product of its digits is 108, while the sum is 19.

The square root of 1223911 is about 1106.3051116216. The cubic root of 1223911 is about 106.9670320886.

The spelling of 1223911 in words is "one million, two hundred twenty-three thousand, nine hundred eleven".