1200245 has 4 divisors (see below), whose sum is σ = 1440300. Its totient is φ = 960192.

The previous prime is 1200233. The next prime is 1200253. The reversal of 1200245 is 5420021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5420021 = 43 ⋅126047.

It can be written as a sum of positive squares in 2 ways, for example, as 625681 + 574564 = 791^2 + 758^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200245 - 2¹⁶ = 1134709 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120020 + ... + 120029.

It is an arithmetic number, because the mean of its divisors is an integer number (360075).

2^1200245 is an apocalyptic number.

It is an amenable number.

1200245 is a deficient number, since it is larger than the sum of its proper divisors (240055).

1200245 is an equidigital number, since it uses as much as digits as its factorization.

1200245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240054.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1200245 is about 1095.5569359919. The cubic root of 1200245 is about 106.2730884081.

Adding to 1200245 its reverse (5420021), we get a palindrome (6620266).

The spelling of 1200245 in words is "one million, two hundred thousand, two hundred forty-five".