42981083 has 4 divisors (see below), whose sum is σ = 45509400. Its totient is φ = 40452768.

The previous prime is 42981073. The next prime is 42981091. The reversal of 42981083 is 38018924.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42981083 - 2¹² = 42976987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42981023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1264133 + ... + 1264166.

It is an arithmetic number, because the mean of its divisors is an integer number (11377350).

Almost surely, 2^42981083 is an apocalyptic number.

42981083 is a deficient number, since it is larger than the sum of its proper divisors (2528317).

42981083 is a wasteful number, since it uses less digits than its factorization.

42981083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528316.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 42981083 is about 6555.9959578999. The cubic root of 42981083 is about 350.2884234789.

The spelling of 42981083 in words is "forty-two million, nine hundred eighty-one thousand, eighty-three".