61706201 has 2 divisors, whose sum is σ = 61706202. Its totient is φ = 61706200.

The previous prime is 61706191. The next prime is 61706207. The reversal of 61706201 is 10260716.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58537801 + 3168400 = 7651^2 + 1780^2 .

It is a cyclic number.

It is not a de Polignac number, because 61706201 - 2⁶ = 61706137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (61706207) 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, 30853100 + 30853101.

It is an arithmetic number, because the mean of its divisors is an integer number (30853101).

Almost surely, 2^61706201 is an apocalyptic number.

It is an amenable number.

61706201 is a deficient number, since it is larger than the sum of its proper divisors (1).

61706201 is an equidigital number, since it uses as much as digits as its factorization.

61706201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 61706201 is about 7855.3294647647. The cubic root of 61706201 is about 395.1629963421.

Adding to 61706201 its reverse (10260716), we get a palindrome (71966917).

The spelling of 61706201 in words is "sixty-one million, seven hundred six thousand, two hundred one".