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201012109 is a prime number
BaseRepresentation
bin10111111101100…
…11001110001101
3112000020110202221
423332303032031
5402424341414
631540215341
74660401064
oct1376631615
9460213687
10201012109
11a3514411
125739a551
133284cb9c
141c9a71db
15129a9224
hexbfb338d

201012109 has 2 divisors, whose sum is σ = 201012110. Its totient is φ = 201012108.

The previous prime is 201012101. The next prime is 201012113. The reversal of 201012109 is 901210102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181845225 + 19166884 = 13485^2 + 4378^2 .

It is a cyclic number.

It is not a de Polignac number, because 201012109 - 23 = 201012101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201012092 and 201012101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201012101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506054 + 100506055.

It is an arithmetic number, because the mean of its divisors is an integer number (100506055).

Almost surely, 2201012109 is an apocalyptic number.

It is an amenable number.

201012109 is a deficient number, since it is larger than the sum of its proper divisors (1).

201012109 is an equidigital number, since it uses as much as digits as its factorization.

201012109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 201012109 is about 14177.8739238293. The cubic root of 201012109 is about 585.7883631613.

The spelling of 201012109 in words is "two hundred one million, twelve thousand, one hundred nine".