61041643 has 8 divisors (see below), whose sum is σ = 65811200. Its totient is φ = 56282688.

The previous prime is 61041593. The next prime is 61041647. The reversal of 61041643 is 34614016.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61041643 - 2²⁵ = 27487211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61041647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12598 + ... + 16756.

It is an arithmetic number, because the mean of its divisors is an integer number (8226400).

Almost surely, 2^61041643 is an apocalyptic number.

61041643 is a deficient number, since it is larger than the sum of its proper divisors (4769557).

61041643 is a wasteful number, since it uses less digits than its factorization.

61041643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5301.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 61041643 is about 7812.9151409701. The cubic root of 61041643 is about 393.7392758312.

Adding to 61041643 its reverse (34614016), we get a palindrome (95655659).

The spelling of 61041643 in words is "sixty-one million, forty-one thousand, six hundred forty-three".