61616141 has 2 divisors, whose sum is σ = 61616142. Its totient is φ = 61616140.

The previous prime is 61616131. The next prime is 61616167. The reversal of 61616141 is 14161616.

It is an a-pointer prime, because the next prime (61616167) can be obtained adding 61616141 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30858025 + 30758116 = 5555^2 + 5546^2 .

It is a cyclic number.

It is not a de Polignac number, because 61616141 - 2¹⁰ = 61615117 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 61616141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61616101) 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, 30808070 + 30808071.

It is an arithmetic number, because the mean of its divisors is an integer number (30808071).

Almost surely, 2^61616141 is an apocalyptic number.

It is an amenable number.

61616141 is a deficient number, since it is larger than the sum of its proper divisors (1).

61616141 is an equidigital number, since it uses as much as digits as its factorization.

61616141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 61616141 is about 7849.5949577032. The cubic root of 61616141 is about 394.9706563685.

Adding to 61616141 its reverse (14161616), we get a palindrome (75777757).

The spelling of 61616141 in words is "sixty-one million, six hundred sixteen thousand, one hundred forty-one".