42284251 has 2 divisors, whose sum is σ = 42284252. Its totient is φ = 42284250.

The previous prime is 42284239. The next prime is 42284273. The reversal of 42284251 is 15248224.

42284251 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 42284251 - 2⁹ = 42283739 is a prime.

It is not a weakly prime, because it can be changed into another prime (42284201) 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, 21142125 + 21142126.

It is an arithmetic number, because the mean of its divisors is an integer number (21142126).

Almost surely, 2^42284251 is an apocalyptic number.

42284251 is a deficient number, since it is larger than the sum of its proper divisors (1).

42284251 is an equidigital number, since it uses as much as digits as its factorization.

42284251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5120, while the sum is 28.

The square root of 42284251 is about 6502.6341585545. The cubic root of 42284251 is about 348.3850798537.

The spelling of 42284251 in words is "forty-two million, two hundred eighty-four thousand, two hundred fifty-one".