42311089 has 2 divisors, whose sum is σ = 42311090. Its totient is φ = 42311088.

The previous prime is 42311033. The next prime is 42311107. The reversal of 42311089 is 98011324.

It is a happy number.

42311089 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., 24671089 + 17640000 = 4967^2 + 4200^2 .

It is a cyclic number.

It is not a de Polignac number, because 42311089 - 2¹⁵ = 42278321 is a prime.

It is not a weakly prime, because it can be changed into another prime (42311189) 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, 21155544 + 21155545.

It is an arithmetic number, because the mean of its divisors is an integer number (21155545).

Almost surely, 2^42311089 is an apocalyptic number.

It is an amenable number.

42311089 is a deficient number, since it is larger than the sum of its proper divisors (1).

42311089 is an equidigital number, since it uses as much as digits as its factorization.

42311089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 42311089 is about 6504.6974564541. The cubic root of 42311089 is about 348.4587714457.

The spelling of 42311089 in words is "forty-two million, three hundred eleven thousand, eighty-nine".