42855183 has 32 divisors (see below), whose sum is σ = 72990720. Its totient is φ = 24343200.

The previous prime is 42855179. The next prime is 42855193. The reversal of 42855183 is 38155824.

It is a happy number.

42855183 is a `hidden beast` number, since 4 + 28 + 551 + 83 = 666.

It is not a de Polignac number, because 42855183 - 2² = 42855179 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42855173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36658 + ... + 37808.

It is an arithmetic number, because the mean of its divisors is an integer number (2280960).

Almost surely, 2^42855183 is an apocalyptic number.

42855183 is a deficient number, since it is larger than the sum of its proper divisors (30135537).

42855183 is a wasteful number, since it uses less digits than its factorization.

42855183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 1358 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 42855183 is about 6546.3870188066. The cubic root of 42855183 is about 349.9460678804.

It can be divided in two parts, 428 and 55183, that added together give a triangular number (55611 = T₃₃₃).

The spelling of 42855183 in words is "forty-two million, eight hundred fifty-five thousand, one hundred eighty-three".