61424243 has 2 divisors, whose sum is σ = 61424244. Its totient is φ = 61424242.

The previous prime is 61424219. The next prime is 61424249. The reversal of 61424243 is 34242416.

61424243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61424243 - 2¹² = 61420147 is a prime.

It is not a weakly prime, because it can be changed into another prime (61424249) 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 as a sum of consecutive naturals, namely, 30712121 + 30712122.

It is an arithmetic number, because the mean of its divisors is an integer number (30712122).

Almost surely, 2^61424243 is an apocalyptic number.

61424243 is a deficient number, since it is larger than the sum of its proper divisors (1).

61424243 is an equidigital number, since it uses as much as digits as its factorization.

61424243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 61424243 is about 7837.3619924054. The cubic root of 61424243 is about 394.5601962799.

Adding to 61424243 its reverse (34242416), we get a palindrome (95666659).

It can be divided in two parts, 6 and 1424243, that multiplied together give a palindrome (8545458).

The spelling of 61424243 in words is "sixty-one million, four hundred twenty-four thousand, two hundred forty-three".