61705201 has 2 divisors, whose sum is σ = 61705202. Its totient is φ = 61705200.

The previous prime is 61705187. The next prime is 61705207. The reversal of 61705201 is 10250716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38192400 + 23512801 = 6180^2 + 4849^2 .

It is a cyclic number.

It is not a de Polignac number, because 61705201 - 2⁵ = 61705169 is a prime.

It is not a weakly prime, because it can be changed into another prime (61705207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30852600 + 30852601.

It is an arithmetic number, because the mean of its divisors is an integer number (30852601).

Almost surely, 2^61705201 is an apocalyptic number.

It is an amenable number.

61705201 is a deficient number, since it is larger than the sum of its proper divisors (1).

61705201 is an equidigital number, since it uses as much as digits as its factorization.

61705201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 61705201 is about 7855.2658134528. The cubic root of 61705201 is about 395.1608616829.

Adding to 61705201 its reverse (10250716), we get a palindrome (71955917).

The spelling of 61705201 in words is "sixty-one million, seven hundred five thousand, two hundred one".