201049 has 2 divisors, whose sum is σ = 201050. Its totient is φ = 201048.
The previous prime is 201037. The next prime is 201073. The reversal of 201049 is 940102.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 176400 + 24649 = 420^2 + 157^2 .
It is a cyclic number.
It is not a de Polignac number, because 201049 - 215 = 168281 is a prime.
201049 is a lucky number.
It is a nialpdrome in base 12.
It is not a weakly prime, because it can be changed into another prime (201449) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100524 + 100525.
It is an arithmetic number, because the mean of its divisors is an integer number (100525).
2201049 is an apocalyptic number.
It is an amenable number.
201049 is a deficient number, since it is larger than the sum of its proper divisors (1).
201049 is an equidigital number, since it uses as much as digits as its factorization.
201049 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 72, while the sum is 16.
The square root of 201049 is about 448.3848793169. The cubic root of 201049 is about 58.5824196818.
The spelling of 201049 in words is "two hundred one thousand, forty-nine".
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