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12543053 is a prime number
BaseRepresentation
bin101111110110…
…010001001101
3212121020211112
4233312101031
511202334203
61124501405
7211420445
oct57662115
925536745
1012543053
117097866
12424a865
1327a2233
141947125
15117b6d8
hexbf644d

12543053 has 2 divisors, whose sum is σ = 12543054. Its totient is φ = 12543052.

The previous prime is 12542989. The next prime is 12543061. The reversal of 12543053 is 35034521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9223369 + 3319684 = 3037^2 + 1822^2 .

It is an emirp because it is prime and its reverse (35034521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12543053 - 26 = 12542989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12543353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6271526 + 6271527.

It is an arithmetic number, because the mean of its divisors is an integer number (6271527).

Almost surely, 212543053 is an apocalyptic number.

It is an amenable number.

12543053 is a deficient number, since it is larger than the sum of its proper divisors (1).

12543053 is an equidigital number, since it uses as much as digits as its factorization.

12543053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 12543053 is about 3541.6172859303. The cubic root of 12543053 is about 232.3455821290.

Adding to 12543053 its reverse (35034521), we get a palindrome (47577574).

The spelling of 12543053 in words is "twelve million, five hundred forty-three thousand, fifty-three".