12620275 has 18 divisors (see below), whose sum is σ = 16574460. Its totient is φ = 9506160.

The previous prime is 12620269. The next prime is 12620297. The reversal of 12620275 is 57202621.

It is not a de Polignac number, because 12620275 - 2⁵ = 12620243 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 17 ways as a sum of consecutive naturals, for example, 77344 + ... + 77506.

Almost surely, 2^12620275 is an apocalyptic number.

12620275 is a deficient number, since it is larger than the sum of its proper divisors (3954185).

12620275 is an equidigital number, since it uses as much as digits as its factorization.

12620275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 12620275 is about 3552.5026389856. The cubic root of 12620275 is about 232.8214230924.

Adding to 12620275 its reverse (57202621), we get a palindrome (69822896).

The spelling of 12620275 in words is "twelve million, six hundred twenty thousand, two hundred seventy-five".