42283261 has 2 divisors, whose sum is σ = 42283262. Its totient is φ = 42283260.

The previous prime is 42283237. The next prime is 42283289. The reversal of 42283261 is 16238224.

42283261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (42283289) can be obtained adding 42283261 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23707161 + 18576100 = 4869^2 + 4310^2 .

It is a cyclic number.

It is not a de Polignac number, because 42283261 - 2¹⁵ = 42250493 is a prime.

It is equal to p_2563804 and since 42283261 and 2563804 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42283211) 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, 21141630 + 21141631.

It is an arithmetic number, because the mean of its divisors is an integer number (21141631).

Almost surely, 2^42283261 is an apocalyptic number.

It is an amenable number.

42283261 is a deficient number, since it is larger than the sum of its proper divisors (1).

42283261 is an equidigital number, since it uses as much as digits as its factorization.

42283261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 28.

The square root of 42283261 is about 6502.5580351120. The cubic root of 42283261 is about 348.3823609224.

The spelling of 42283261 in words is "forty-two million, two hundred eighty-three thousand, two hundred sixty-one".