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10212018149 is a prime number
BaseRepresentation
bin10011000001010111…
…10000011111100101
3222100200201021100102
421200223300133211
5131403234040044
64405154553445
7511030502444
oct114053603745
928320637312
1010212018149
114370466423
121b8bb98885
13c698c1ab8
146cc392d5b
153eb7dd24e
hex260af07e5

10212018149 has 2 divisors, whose sum is σ = 10212018150. Its totient is φ = 10212018148.

The previous prime is 10212018143. The next prime is 10212018197. The reversal of 10212018149 is 94181021201.

10212018149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6429153124 + 3782865025 = 80182^2 + 61505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10212018149 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212018143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106009074 + 5106009075.

It is an arithmetic number, because the mean of its divisors is an integer number (5106009075).

Almost surely, 210212018149 is an apocalyptic number.

It is an amenable number.

10212018149 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212018149 is an equidigital number, since it uses as much as digits as its factorization.

10212018149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 10212018149 in words is "ten billion, two hundred twelve million, eighteen thousand, one hundred forty-nine".