1230505 has 8 divisors (see below), whose sum is σ = 1482624. Its totient is φ = 980400.

The previous prime is 1230491. The next prime is 1230521. The reversal of 1230505 is 5050321.

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

It is not a de Polignac number, because 1230505 - 2⁷ = 1230377 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (185328).

2^1230505 is an apocalyptic number.

It is an amenable number.

1230505 is a deficient number, since it is larger than the sum of its proper divisors (252119).

1230505 is an equidigital number, since it uses as much as digits as its factorization.

1230505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 1230505 is about 1109.2812988598. The cubic root of 1230505 is about 107.1587883189.

Adding to 1230505 its reverse (5050321), we get a palindrome (6280826).

The spelling of 1230505 in words is "one million, two hundred thirty thousand, five hundred five".