201840229 has 2 divisors, whose sum is σ = 201840230. Its totient is φ = 201840228.

The previous prime is 201840227. The next prime is 201840259. The reversal of 201840229 is 922048102.

201840229 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., 195580225 + 6260004 = 13985^2 + 2502^2 .

It is a cyclic number.

It is not a de Polignac number, because 201840229 - 2¹ = 201840227 is a prime.

Together with 201840227, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 201840197 and 201840206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201840227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100920114 + 100920115.

It is an arithmetic number, because the mean of its divisors is an integer number (100920115).

Almost surely, 2^201840229 is an apocalyptic number.

It is an amenable number.

201840229 is a deficient number, since it is larger than the sum of its proper divisors (1).

201840229 is an equidigital number, since it uses as much as digits as its factorization.

201840229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 201840229 is about 14207.0485675245. The cubic root of 201840229 is about 586.5916952162.

The spelling of 201840229 in words is "two hundred one million, eight hundred forty thousand, two hundred twenty-nine".