42305147 has 4 divisors (see below), whose sum is σ = 42998736. Its totient is φ = 41611560.

The previous prime is 42305143. The next prime is 42305167. The reversal of 42305147 is 74150324.

42305147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42305147 - 2² = 42305143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42305141) 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 in 3 ways as a sum of consecutive naturals, for example, 346703 + ... + 346824.

It is an arithmetic number, because the mean of its divisors is an integer number (10749684).

Almost surely, 2^42305147 is an apocalyptic number.

42305147 is a deficient number, since it is larger than the sum of its proper divisors (693589).

42305147 is an equidigital number, since it uses as much as digits as its factorization.

42305147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693588.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 42305147 is about 6504.2406935783. The cubic root of 42305147 is about 348.4424586303.

The spelling of 42305147 in words is "forty-two million, three hundred five thousand, one hundred forty-seven".