61612241 has 2 divisors, whose sum is σ = 61612242. Its totient is φ = 61612240.

The previous prime is 61612237. The next prime is 61612259. The reversal of 61612241 is 14221616.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43507216 + 18105025 = 6596^2 + 4255^2 .

It is a cyclic number.

It is not a de Polignac number, because 61612241 - 2² = 61612237 is a prime.

It is not a weakly prime, because it can be changed into another prime (61612261) 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, 30806120 + 30806121.

It is an arithmetic number, because the mean of its divisors is an integer number (30806121).

Almost surely, 2^61612241 is an apocalyptic number.

It is an amenable number.

61612241 is a deficient number, since it is larger than the sum of its proper divisors (1).

61612241 is an equidigital number, since it uses as much as digits as its factorization.

61612241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 23.

The square root of 61612241 is about 7849.3465333109. The cubic root of 61612241 is about 394.9623229565.

Adding to 61612241 its reverse (14221616), we get a palindrome (75833857).

The spelling of 61612241 in words is "sixty-one million, six hundred twelve thousand, two hundred forty-one".