42765043 has 2 divisors, whose sum is σ = 42765044. Its totient is φ = 42765042.

The previous prime is 42765031. The next prime is 42765049. The reversal of 42765043 is 34056724.

42765043 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 is a cyclic number.

It is not a de Polignac number, because 42765043 - 2¹³ = 42756851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42764996 and 42765014.

It is not a weakly prime, because it can be changed into another prime (42765049) 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, 21382521 + 21382522.

It is an arithmetic number, because the mean of its divisors is an integer number (21382522).

Almost surely, 2^42765043 is an apocalyptic number.

42765043 is a deficient number, since it is larger than the sum of its proper divisors (1).

42765043 is an equidigital number, since it uses as much as digits as its factorization.

42765043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 42765043 is about 6539.4986810917. The cubic root of 42765043 is about 349.7005411360.

The spelling of 42765043 in words is "forty-two million, seven hundred sixty-five thousand, forty-three".