42999241 has 2 divisors, whose sum is σ = 42999242. Its totient is φ = 42999240.

The previous prime is 42999191. The next prime is 42999247. The reversal of 42999241 is 14299924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42302016 + 697225 = 6504^2 + 835^2 .

It is a cyclic number.

It is not a de Polignac number, because 42999241 - 2⁷ = 42999113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42999194 and 42999203.

It is not a weakly prime, because it can be changed into another prime (42999247) 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, 21499620 + 21499621.

It is an arithmetic number, because the mean of its divisors is an integer number (21499621).

Almost surely, 2^42999241 is an apocalyptic number.

It is an amenable number.

42999241 is a deficient number, since it is larger than the sum of its proper divisors (1).

42999241 is an equidigital number, since it uses as much as digits as its factorization.

42999241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 42999241 is about 6557.3806508392. The cubic root of 42999241 is about 350.3377447249.

The spelling of 42999241 in words is "forty-two million, nine hundred ninety-nine thousand, two hundred forty-one".