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13164881 is a prime number
BaseRepresentation
bin110010001110…
…000101010001
3220202211211012
4302032011101
511332234011
61150100305
7216620402
oct62160521
926684735
1013164881
117481a74
1244aa695
13295c292
141a699a9
151250a8b
hexc8e151

13164881 has 2 divisors, whose sum is σ = 13164882. Its totient is φ = 13164880.

The previous prime is 13164821. The next prime is 13164883. The reversal of 13164881 is 18846131.

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., 6713281 + 6451600 = 2591^2 + 2540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13164881 is a prime.

It is a super-2 number, since 2×131648812 = 346628183488322, which contains 22 as substring.

Together with 13164883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13164883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6582440 + 6582441.

It is an arithmetic number, because the mean of its divisors is an integer number (6582441).

Almost surely, 213164881 is an apocalyptic number.

It is an amenable number.

13164881 is a deficient number, since it is larger than the sum of its proper divisors (1).

13164881 is an equidigital number, since it uses as much as digits as its factorization.

13164881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 32.

The square root of 13164881 is about 3628.3441126773. The cubic root of 13164881 is about 236.1233734418.

The spelling of 13164881 in words is "thirteen million, one hundred sixty-four thousand, eight hundred eighty-one".