42816145 has 8 divisors (see below), whose sum is σ = 51784704. Its totient is φ = 33982704.

The previous prime is 42816127. The next prime is 42816197. The reversal of 42816145 is 54161824.

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

It is a cyclic number.

It is not a de Polignac number, because 42816145 - 2¹¹ = 42814097 is a prime.

It is a super-2 number, since 2×42816145² = 3666444545322050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33079 + ... + 34348.

It is an arithmetic number, because the mean of its divisors is an integer number (6473088).

Almost surely, 2^42816145 is an apocalyptic number.

It is an amenable number.

42816145 is a deficient number, since it is larger than the sum of its proper divisors (8968559).

42816145 is a wasteful number, since it uses less digits than its factorization.

42816145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67559.

The product of its digits is 7680, while the sum is 31.

The square root of 42816145 is about 6543.4046948053. The cubic root of 42816145 is about 349.8397770044.

Adding to 42816145 its reverse (54161824), we get a palindrome (96977969).

The spelling of 42816145 in words is "forty-two million, eight hundred sixteen thousand, one hundred forty-five".