61216841 has 16 divisors (see below), whose sum is σ = 73881600. Its totient is φ = 49549968.

The previous prime is 61216811. The next prime is 61216861. The reversal of 61216841 is 14861216.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61216841 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (61216811) 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 in 15 ways as a sum of consecutive naturals, for example, 58400 + ... + 59438.

It is an arithmetic number, because the mean of its divisors is an integer number (4617600).

Almost surely, 2^61216841 is an apocalyptic number.

It is an amenable number.

61216841 is a deficient number, since it is larger than the sum of its proper divisors (12664759).

61216841 is a wasteful number, since it uses less digits than its factorization.

61216841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508.

The product of its digits is 2304, while the sum is 29.

The square root of 61216841 is about 7824.1191836526. The cubic root of 61216841 is about 394.1156114987.

The spelling of 61216841 in words is "sixty-one million, two hundred sixteen thousand, eight hundred forty-one".