201250657 has 2 divisors, whose sum is σ = 201250658. Its totient is φ = 201250656.

The previous prime is 201250649. The next prime is 201250661. The reversal of 201250657 is 756052102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115799121 + 85451536 = 10761^2 + 9244^2 .

It is a cyclic number.

It is not a de Polignac number, because 201250657 - 2³ = 201250649 is a prime.

It is not a weakly prime, because it can be changed into another prime (201250697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100625328 + 100625329.

It is an arithmetic number, because the mean of its divisors is an integer number (100625329).

Almost surely, 2^201250657 is an apocalyptic number.

It is an amenable number.

201250657 is a deficient number, since it is larger than the sum of its proper divisors (1).

201250657 is an equidigital number, since it uses as much as digits as its factorization.

201250657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 201250657 is about 14186.2841152995. The cubic root of 201250657 is about 586.0199966385.

The spelling of 201250657 in words is "two hundred one million, two hundred fifty thousand, six hundred fifty-seven".