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12925487 is a prime number
BaseRepresentation
bin110001010011…
…101000101111
3220022200102202
4301103220233
511302103422
61141012115
7214602431
oct61235057
926280382
1012925487
117329123
1243b403b
1328a7323
141a06651
151204b92
hexc53a2f

12925487 has 2 divisors, whose sum is σ = 12925488. Its totient is φ = 12925486.

The previous prime is 12925441. The next prime is 12925501. The reversal of 12925487 is 78452921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12925487 - 210 = 12924463 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12925487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12924487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6462743 + 6462744.

It is an arithmetic number, because the mean of its divisors is an integer number (6462744).

Almost surely, 212925487 is an apocalyptic number.

12925487 is a deficient number, since it is larger than the sum of its proper divisors (1).

12925487 is an equidigital number, since it uses as much as digits as its factorization.

12925487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 38.

The square root of 12925487 is about 3595.2033322192. The cubic root of 12925487 is about 234.6833641144.

It can be divided in two parts, 129 and 25487, that multiplied together give a palindrome (3287823).

The spelling of 12925487 in words is "twelve million, nine hundred twenty-five thousand, four hundred eighty-seven".