61306241 has 2 divisors, whose sum is σ = 61306242. Its totient is φ = 61306240.

The previous prime is 61306187. The next prime is 61306253. The reversal of 61306241 is 14260316.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41011216 + 20295025 = 6404^2 + 4505^2 .

It is a cyclic number.

It is not a de Polignac number, because 61306241 - 2⁶ = 61306177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (61306741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30653120 + 30653121.

It is an arithmetic number, because the mean of its divisors is an integer number (30653121).

Almost surely, 2^61306241 is an apocalyptic number.

It is an amenable number.

61306241 is a deficient number, since it is larger than the sum of its proper divisors (1).

61306241 is an equidigital number, since it uses as much as digits as its factorization.

61306241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 61306241 is about 7829.8302025012. The cubic root of 61306241 is about 394.3073713549.

Adding to 61306241 its reverse (14260316), we get a palindrome (75566557).

The spelling of 61306241 in words is "sixty-one million, three hundred six thousand, two hundred forty-one".