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12541513 is a prime number
BaseRepresentation
bin101111110101…
…111001001001
3212121011201111
4233311321021
511202312023
61124450321
7211413115
oct57657111
925534644
1012541513
117096696
1242499a1
1327a161a
141946745
15117b00d
hexbf5e49

12541513 has 2 divisors, whose sum is σ = 12541514. Its totient is φ = 12541512.

The previous prime is 12541493. The next prime is 12541519. The reversal of 12541513 is 31514521.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7033104 + 5508409 = 2652^2 + 2347^2 .

It is a cyclic number.

It is not a de Polignac number, because 12541513 - 25 = 12541481 is a prime.

It is not a weakly prime, because it can be changed into another prime (12541519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6270756 + 6270757.

It is an arithmetic number, because the mean of its divisors is an integer number (6270757).

Almost surely, 212541513 is an apocalyptic number.

It is an amenable number.

12541513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12541513 is an equidigital number, since it uses as much as digits as its factorization.

12541513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 600, while the sum is 22.

The square root of 12541513 is about 3541.3998644604. The cubic root of 12541513 is about 232.3360728322.

The spelling of 12541513 in words is "twelve million, five hundred forty-one thousand, five hundred thirteen".