1223953 has 2 divisors, whose sum is σ = 1223954. Its totient is φ = 1223952.

The previous prime is 1223941. The next prime is 1223977. The reversal of 1223953 is 3593221.

It is a happy number.

1223953 is nontrivially palindromic in base 5.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1024144 + 199809 = 1012^2 + 447^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223953 - 2⁵ = 1223921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611976 + 611977.

It is an arithmetic number, because the mean of its divisors is an integer number (611977).

2^1223953 is an apocalyptic number.

It is an amenable number.

1223953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223953 is an equidigital number, since it uses as much as digits as its factorization.

1223953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 25.

The square root of 1223953 is about 1106.3240935639. The cubic root of 1223953 is about 106.9682556427.

The spelling of 1223953 in words is "one million, two hundred twenty-three thousand, nine hundred fifty-three".