201745057 has 2 divisors, whose sum is σ = 201745058. Its totient is φ = 201745056.

The previous prime is 201745031. The next prime is 201745067. The reversal of 201745057 is 750547102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 162919696 + 38825361 = 12764^2 + 6231^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201745057 is a prime.

It is not a weakly prime, because it can be changed into another prime (201745067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100872528 + 100872529.

It is an arithmetic number, because the mean of its divisors is an integer number (100872529).

Almost surely, 2^201745057 is an apocalyptic number.

It is an amenable number.

201745057 is a deficient number, since it is larger than the sum of its proper divisors (1).

201745057 is an equidigital number, since it uses as much as digits as its factorization.

201745057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 201745057 is about 14203.6987084351. The cubic root of 201745057 is about 586.4994838634.

It can be divided in two parts, 2017 and 45057, that added together give a palindrome (47074).

The spelling of 201745057 in words is "two hundred one million, seven hundred forty-five thousand, fifty-seven".