61052161 has 2 divisors, whose sum is σ = 61052162. Its totient is φ = 61052160.

The previous prime is 61052141. The next prime is 61052171. The reversal of 61052161 is 16125016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49280400 + 11771761 = 7020^2 + 3431^2 .

It is a cyclic number.

It is not a de Polignac number, because 61052161 - 2⁹ = 61051649 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (61052141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30526080 + 30526081.

It is an arithmetic number, because the mean of its divisors is an integer number (30526081).

Almost surely, 2^61052161 is an apocalyptic number.

It is an amenable number.

61052161 is a deficient number, since it is larger than the sum of its proper divisors (1).

61052161 is an equidigital number, since it uses as much as digits as its factorization.

61052161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 61052161 is about 7813.5882282086. The cubic root of 61052161 is about 393.7618894201.

Adding to 61052161 its reverse (16125016), we get a palindrome (77177177).

The spelling of 61052161 in words is "sixty-one million, fifty-two thousand, one hundred sixty-one".