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108966901 is a prime number
BaseRepresentation
bin1100111111010…
…11001111110101
321121001002111011
412133223033311
5210343420101
614451312221
72462126521
oct637531765
9247032434
10108966901
115656649a
12305ab671
1319763074
1410686d81
159876751
hex67eb3f5

108966901 has 2 divisors, whose sum is σ = 108966902. Its totient is φ = 108966900.

The previous prime is 108966899. The next prime is 108966929. The reversal of 108966901 is 109669801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102212100 + 6754801 = 10110^2 + 2599^2 .

It is an emirp because it is prime and its reverse (109669801) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 106996801 and 108699601.

It is a cyclic number.

It is not a de Polignac number, because 108966901 - 21 = 108966899 is a prime.

Together with 108966899, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108966931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54483450 + 54483451.

It is an arithmetic number, because the mean of its divisors is an integer number (54483451).

Almost surely, 2108966901 is an apocalyptic number.

It is an amenable number.

108966901 is a deficient number, since it is larger than the sum of its proper divisors (1).

108966901 is an equidigital number, since it uses as much as digits as its factorization.

108966901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 108966901 is about 10438.7212339443. The cubic root of 108966901 is about 477.6372617826.

The spelling of 108966901 in words is "one hundred eight million, nine hundred sixty-six thousand, nine hundred one".