201126193 has 2 divisors, whose sum is σ = 201126194. Its totient is φ = 201126192.

The previous prime is 201126187. The next prime is 201126203. The reversal of 201126193 is 391621102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141419664 + 59706529 = 11892^2 + 7727^2 .

It is a cyclic number.

It is not a de Polignac number, because 201126193 - 2²¹ = 199029041 is a prime.

It is not a weakly prime, because it can be changed into another prime (201126293) 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, 100563096 + 100563097.

It is an arithmetic number, because the mean of its divisors is an integer number (100563097).

Almost surely, 2^201126193 is an apocalyptic number.

It is an amenable number.

201126193 is a deficient number, since it is larger than the sum of its proper divisors (1).

201126193 is an equidigital number, since it uses as much as digits as its factorization.

201126193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 201126193 is about 14181.8966644099. The cubic root of 201126193 is about 585.8991631873.

Adding to 201126193 its reverse (391621102), we get a palindrome (592747295).

The spelling of 201126193 in words is "two hundred one million, one hundred twenty-six thousand, one hundred ninety-three".