1230245 has 4 divisors (see below), whose sum is σ = 1476300. Its totient is φ = 984192.

The previous prime is 1230241. The next prime is 1230263. The reversal of 1230245 is 5420321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 917764 + 312481 = 958^2 + 559^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230245 - 2² = 1230241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123020 + ... + 123029.

It is an arithmetic number, because the mean of its divisors is an integer number (369075).

2^1230245 is an apocalyptic number.

It is an amenable number.

1230245 is a deficient number, since it is larger than the sum of its proper divisors (246055).

1230245 is an equidigital number, since it uses as much as digits as its factorization.

1230245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246054.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1230245 is about 1109.1640996715. The cubic root of 1230245 is about 107.1512404022.

Adding to 1230245 its reverse (5420321), we get a palindrome (6650566).

The spelling of 1230245 in words is "one million, two hundred thirty thousand, two hundred forty-five".