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12124081 is a prime number
BaseRepresentation
bin101110001111…
…111110110001
3211210222010001
4232033332301
511100432311
61111510001
7205024114
oct56177661
924728101
1012124081
116931002
124088301
132686618
14187857b
1510e74c1
hexb8ffb1

12124081 has 2 divisors, whose sum is σ = 12124082. Its totient is φ = 12124080.

The previous prime is 12124061. The next prime is 12124093. The reversal of 12124081 is 18042121.

It is a happy number.

12124081 is digitally balanced in base 3, 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., 11458225 + 665856 = 3385^2 + 816^2 .

It is an emirp because it is prime and its reverse (18042121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12124081 - 27 = 12123953 is a prime.

It is a super-2 number, since 2×121240812 = 293986680189122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12124061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6062040 + 6062041.

It is an arithmetic number, because the mean of its divisors is an integer number (6062041).

Almost surely, 212124081 is an apocalyptic number.

It is an amenable number.

12124081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12124081 is an equidigital number, since it uses as much as digits as its factorization.

12124081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 12124081 is about 3481.9651060859. The cubic root of 12124081 is about 229.7292402986.

The spelling of 12124081 in words is "twelve million, one hundred twenty-four thousand, eighty-one".