61424039 has 2 divisors, whose sum is σ = 61424040. Its totient is φ = 61424038.

The previous prime is 61424023. The next prime is 61424063. The reversal of 61424039 is 93042416.

61424039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61424039 - 2⁴ = 61424023 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61424089) 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, 30712019 + 30712020.

It is an arithmetic number, because the mean of its divisors is an integer number (30712020).

Almost surely, 2^61424039 is an apocalyptic number.

61424039 is a deficient number, since it is larger than the sum of its proper divisors (1).

61424039 is an equidigital number, since it uses as much as digits as its factorization.

61424039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 61424039 is about 7837.3489778113. The cubic root of 61424039 is about 394.5597594797.

The spelling of 61424039 in words is "sixty-one million, four hundred twenty-four thousand, thirty-nine".