83845143 has 12 divisors (see below), whose sum is σ = 126375600. Its totient is φ = 53466336.

The previous prime is 83845129. The next prime is 83845147. The reversal of 83845143 is 34154838.

It is not a de Polignac number, because 83845143 - 2⁴ = 83845127 is a prime.

It is a super-3 number, since 3×83845143³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83845098 and 83845107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83845147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 202318 + ... + 202731.

It is an arithmetic number, because the mean of its divisors is an integer number (10531300).

Almost surely, 2^83845143 is an apocalyptic number.

83845143 is a deficient number, since it is larger than the sum of its proper divisors (42530457).

83845143 is a wasteful number, since it uses less digits than its factorization.

83845143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405078 (or 405075 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 83845143 is about 9156.6993507486. The cubic root of 83845143 is about 437.6826217728.

The spelling of 83845143 in words is "eighty-three million, eight hundred forty-five thousand, one hundred forty-three".