42854145 has 16 divisors (see below), whose sum is σ = 69394752. Its totient is φ = 22579520.

The previous prime is 42854137. The next prime is 42854171. The reversal of 42854145 is 54145824.

It is a happy number.

It is not a de Polignac number, because 42854145 - 2³ = 42854137 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15966 + ... + 18455.

It is an arithmetic number, because the mean of its divisors is an integer number (4337172).

Almost surely, 2^42854145 is an apocalyptic number.

It is an amenable number.

42854145 is a deficient number, since it is larger than the sum of its proper divisors (26540607).

42854145 is a wasteful number, since it uses less digits than its factorization.

42854145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34512.

The product of its digits is 25600, while the sum is 33.

The square root of 42854145 is about 6546.3077379543. The cubic root of 42854145 is about 349.9432424971.

Adding to 42854145 its reverse (54145824), we get a palindrome (96999969).

The spelling of 42854145 in words is "forty-two million, eight hundred fifty-four thousand, one hundred forty-five".