61253142241 has 2 divisors, whose sum is σ = 61253142242. Its totient is φ = 61253142240.

The previous prime is 61253142227. The next prime is 61253142263. The reversal of 61253142241 is 14224135216.

61253142241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43432227216 + 17820915025 = 208404^2 + 133495^2 .

It is a cyclic number.

It is not a de Polignac number, because 61253142241 - 2⁷ = 61253142113 is a prime.

It is not a weakly prime, because it can be changed into another prime (61253142341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30626571120 + 30626571121.

It is an arithmetic number, because the mean of its divisors is an integer number (30626571121).

Almost surely, 2^61253142241 is an apocalyptic number.

It is an amenable number.

61253142241 is a deficient number, since it is larger than the sum of its proper divisors (1).

61253142241 is an equidigital number, since it uses as much as digits as its factorization.

61253142241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

Adding to 61253142241 its reverse (14224135216), we get a palindrome (75477277457).

The spelling of 61253142241 in words is "sixty-one billion, two hundred fifty-three million, one hundred forty-two thousand, two hundred forty-one".