12825155 has 8 divisors (see below), whose sum is σ = 17588832. Its totient is φ = 8794368.

The previous prime is 12825149. The next prime is 12825179. The reversal of 12825155 is 55152821.

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 12825155 - 2⁸ = 12824899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183182 + ... + 183251.

It is an arithmetic number, because the mean of its divisors is an integer number (2198604).

Almost surely, 2^12825155 is an apocalyptic number.

12825155 is a deficient number, since it is larger than the sum of its proper divisors (4763677).

12825155 is an equidigital number, since it uses as much as digits as its factorization.

12825155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366445.

The product of its digits is 4000, while the sum is 29.

The square root of 12825155 is about 3581.2225566139. Note that the first 3 decimals coincide. The cubic root of 12825155 is about 234.0745555890.

Adding to 12825155 its reverse (55152821), we get a palindrome (67977976).

The spelling of 12825155 in words is "twelve million, eight hundred twenty-five thousand, one hundred fifty-five".