12858245 has 4 divisors (see below), whose sum is σ = 15429900. Its totient is φ = 10286592.

The previous prime is 12858233. The next prime is 12858257. The reversal of 12858245 is 54285821.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (12858233) and next prime (12858257).

It can be written as a sum of positive squares in 2 ways, for example, as 2815684 + 10042561 = 1678^2 + 3169^2 .

It is a cyclic number.

It is not a de Polignac number, because 12858245 - 2⁴ = 12858229 is a prime.

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, 1285820 + ... + 1285829.

It is an arithmetic number, because the mean of its divisors is an integer number (3857475).

Almost surely, 2^12858245 is an apocalyptic number.

It is an amenable number.

12858245 is a deficient number, since it is larger than the sum of its proper divisors (2571655).

12858245 is an equidigital number, since it uses as much as digits as its factorization.

12858245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571654.

The product of its digits is 25600, while the sum is 35.

The square root of 12858245 is about 3585.8395111884. The cubic root of 12858245 is about 234.2756935142.

The spelling of 12858245 in words is "twelve million, eight hundred fifty-eight thousand, two hundred forty-five".