1306245 has 8 divisors (see below), whose sum is σ = 2090016. Its totient is φ = 696656.

The previous prime is 1306243. The next prime is 1306259. The reversal of 1306245 is 5426031.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1306245 - 2¹ = 1306243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43527 + ... + 43556.

It is an arithmetic number, because the mean of its divisors is an integer number (261252).

2^1306245 is an apocalyptic number.

1306245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1306245 is a deficient number, since it is larger than the sum of its proper divisors (783771).

1306245 is an equidigital number, since it uses as much as digits as its factorization.

1306245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87091.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1306245 is about 1142.9107576710. The cubic root of 1306245 is about 109.3137719895.

It can be divided in two parts, 1306 and 245, that added together give a palindrome (1551).

The spelling of 1306245 in words is "one million, three hundred six thousand, two hundred forty-five".