201186049 has 2 divisors, whose sum is σ = 201186050. Its totient is φ = 201186048.

The previous prime is 201186019. The next prime is 201186067. The reversal of 201186049 is 940681102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126967824 + 74218225 = 11268^2 + 8615^2 .

It is a cyclic number.

It is not a de Polignac number, because 201186049 - 2⁵ = 201186017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201186049.

It is not a weakly prime, because it can be changed into another prime (201186019) 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, 100593024 + 100593025.

It is an arithmetic number, because the mean of its divisors is an integer number (100593025).

Almost surely, 2^201186049 is an apocalyptic number.

It is an amenable number.

201186049 is a deficient number, since it is larger than the sum of its proper divisors (1).

201186049 is an equidigital number, since it uses as much as digits as its factorization.

201186049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 201186049 is about 14184.0068034389. The cubic root of 201186049 is about 585.9572794399.

The spelling of 201186049 in words is "two hundred one million, one hundred eighty-six thousand, forty-nine".