1223901 has 12 divisors (see below), whose sum is σ = 2020512. Its totient is φ = 699336.

The previous prime is 1223897. The next prime is 1223921. The reversal of 1223901 is 1093221.

It is a happy number.

It is not a de Polignac number, because 1223901 - 2² = 1223897 is a prime.

It is a plaindrome in base 16.

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 11 ways as a sum of consecutive naturals, for example, 9651 + ... + 9776.

It is an arithmetic number, because the mean of its divisors is an integer number (168376).

2^1223901 is an apocalyptic number.

It is an amenable number.

1223901 is a deficient number, since it is larger than the sum of its proper divisors (796611).

1223901 is a wasteful number, since it uses less digits than its factorization.

1223901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19440 (or 19437 counting only the distinct ones).

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

The square root of 1223901 is about 1106.3005920635. The cubic root of 1223901 is about 106.9667407620.

The spelling of 1223901 in words is "one million, two hundred twenty-three thousand, nine hundred one".