1223459 has 2 divisors, whose sum is σ = 1223460. Its totient is φ = 1223458.

The previous prime is 1223449. The next prime is 1223471. The reversal of 1223459 is 9543221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223459 - 2⁸ = 1223203 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1223419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611729 + 611730.

It is an arithmetic number, because the mean of its divisors is an integer number (611730).

2^1223459 is an apocalyptic number.

1223459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223459 is an equidigital number, since it uses as much as digits as its factorization.

1223459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 1223459 is about 1106.1008091490. The cubic root of 1223459 is about 106.9538625439.

The spelling of 1223459 in words is "one million, two hundred twenty-three thousand, four hundred fifty-nine".