42430145 has 8 divisors (see below), whose sum is σ = 51779520. Its totient is φ = 33368560.

The previous prime is 42430139. The next prime is 42430253. The reversal of 42430145 is 54103424.

42430145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-42430145 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 42430145.

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 7 ways as a sum of consecutive naturals, for example, 71621 + ... + 72210.

It is an arithmetic number, because the mean of its divisors is an integer number (6472440).

Almost surely, 2^42430145 is an apocalyptic number.

It is an amenable number.

42430145 is a deficient number, since it is larger than the sum of its proper divisors (9349375).

42430145 is a wasteful number, since it uses less digits than its factorization.

42430145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143895.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 42430145 is about 6513.8425679471. The cubic root of 42430145 is about 348.7852993736.

Adding to 42430145 its reverse (54103424), we get a palindrome (96533569).

The spelling of 42430145 in words is "forty-two million, four hundred thirty thousand, one hundred forty-five".