42645077 has 2 divisors, whose sum is σ = 42645078. Its totient is φ = 42645076.

The previous prime is 42645049. The next prime is 42645091. The reversal of 42645077 is 77054624.

42645077 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 can be written as a sum of positive squares in only one way, i.e., 40436881 + 2208196 = 6359^2 + 1486^2 .

It is a cyclic number.

It is not a de Polignac number, because 42645077 - 2¹⁶ = 42579541 is a 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 (42645017) 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, 21322538 + 21322539.

It is an arithmetic number, because the mean of its divisors is an integer number (21322539).

Almost surely, 2^42645077 is an apocalyptic number.

It is an amenable number.

42645077 is a deficient number, since it is larger than the sum of its proper divisors (1).

42645077 is an equidigital number, since it uses as much as digits as its factorization.

42645077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 42645077 is about 6530.3198237146. The cubic root of 42645077 is about 349.3732374786.

The spelling of 42645077 in words is "forty-two million, six hundred forty-five thousand, seventy-seven".