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12872141 is a prime number
BaseRepresentation
bin110001000110…
…100111001101
3220012222020222
4301012213031
511243402031
61135521125
7214261052
oct61064715
926188228
1012872141
1172a2037
1243891a5
132888c69
1419d1029
1511e3e7b
hexc469cd

12872141 has 2 divisors, whose sum is σ = 12872142. Its totient is φ = 12872140.

The previous prime is 12872131. The next prime is 12872149. The reversal of 12872141 is 14127821.

12872141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6869641 + 6002500 = 2621^2 + 2450^2 .

It is a cyclic number.

It is not a de Polignac number, because 12872141 - 218 = 12609997 is a prime.

It is a Chen prime.

It is equal to p841535 and since 12872141 and 841535 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12872141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12872149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6436070 + 6436071.

It is an arithmetic number, because the mean of its divisors is an integer number (6436071).

Almost surely, 212872141 is an apocalyptic number.

It is an amenable number.

12872141 is a deficient number, since it is larger than the sum of its proper divisors (1).

12872141 is an equidigital number, since it uses as much as digits as its factorization.

12872141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 26.

The square root of 12872141 is about 3587.7766095452. The cubic root of 12872141 is about 234.3600576192.

Adding to 12872141 its reverse (14127821), we get a palindrome (26999962).

The spelling of 12872141 in words is "twelve million, eight hundred seventy-two thousand, one hundred forty-one".