61042741 has 4 divisors (see below), whose sum is σ = 61251372. Its totient is φ = 60834112.

The previous prime is 61042721. The next prime is 61042753. The reversal of 61042741 is 14724016.

61042741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47196900 + 13845841 = 6870^2 + 3721^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61042741 is a prime.

It is a Duffinian number.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61042721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103876 + ... + 104461.

It is an arithmetic number, because the mean of its divisors is an integer number (15312843).

Almost surely, 2^61042741 is an apocalyptic number.

It is an amenable number.

61042741 is a deficient number, since it is larger than the sum of its proper divisors (208631).

61042741 is a wasteful number, since it uses less digits than its factorization.

61042741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208630.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 61042741 is about 7812.9854089202. The cubic root of 61042741 is about 393.7416366410.

Adding to 61042741 its reverse (14724016), we get a palindrome (75766757).

The spelling of 61042741 in words is "sixty-one million, forty-two thousand, seven hundred forty-one".