61424161 has 2 divisors, whose sum is σ = 61424162. Its totient is φ = 61424160.

The previous prime is 61424149. The next prime is 61424177. The reversal of 61424161 is 16142416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55591936 + 5832225 = 7456^2 + 2415^2 .

It is a cyclic number.

It is not a de Polignac number, because 61424161 - 2¹¹ = 61422113 is a prime.

It is not a weakly prime, because it can be changed into another prime (61224161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30712080 + 30712081.

It is an arithmetic number, because the mean of its divisors is an integer number (30712081).

Almost surely, 2^61424161 is an apocalyptic number.

It is an amenable number.

61424161 is a deficient number, since it is larger than the sum of its proper divisors (1).

61424161 is an equidigital number, since it uses as much as digits as its factorization.

61424161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 25.

The square root of 61424161 is about 7837.3567610515. The cubic root of 61424161 is about 394.5600207034.

Adding to 61424161 its reverse (16142416), we get a palindrome (77566577).

The spelling of 61424161 in words is "sixty-one million, four hundred twenty-four thousand, one hundred sixty-one".