42319145 has 16 divisors (see below), whose sum is σ = 55866240. Its totient is φ = 30772720.

The previous prime is 42319139. The next prime is 42319153. The reversal of 42319145 is 54191324.

42319145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42319145 - 2²⁰ = 41270569 is a prime.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 3476 + ... + 9834.

It is an arithmetic number, because the mean of its divisors is an integer number (3491640).

Almost surely, 2^42319145 is an apocalyptic number.

It is an amenable number.

42319145 is a deficient number, since it is larger than the sum of its proper divisors (13547095).

42319145 is an equidigital number, since it uses as much as digits as its factorization.

42319145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6397 (or 6375 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 42319145 is about 6505.3166717693. The cubic root of 42319145 is about 348.4808854729.

The spelling of 42319145 in words is "forty-two million, three hundred nineteen thousand, one hundred forty-five".