42145015 has 8 divisors (see below), whose sum is σ = 55171728. Its totient is φ = 30650880.

The previous prime is 42145009. The next prime is 42145063. The reversal of 42145015 is 51054124.

42145015 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 not a de Polignac number, because 42145015 - 2⁹ = 42144503 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 383082 + ... + 383191.

It is an arithmetic number, because the mean of its divisors is an integer number (6896466).

Almost surely, 2^42145015 is an apocalyptic number.

42145015 is a deficient number, since it is larger than the sum of its proper divisors (13026713).

42145015 is a wasteful number, since it uses less digits than its factorization.

42145015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766289.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 42145015 is about 6491.9192077536. The cubic root of 42145015 is about 348.0022652559.

Adding to 42145015 its reverse (51054124), we get a palindrome (93199139).

It can be divided in two parts, 4214 and 5015, that added together give a palindrome (9229).

The spelling of 42145015 in words is "forty-two million, one hundred forty-five thousand, fifteen".