83244143 has 4 divisors (see below), whose sum is σ = 83601648. Its totient is φ = 82886640.

The previous prime is 83244071. The next prime is 83244157. The reversal of 83244143 is 34144238.

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 83244143 - 2⁸ = 83243887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83244743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178403 + ... + 178868.

It is an arithmetic number, because the mean of its divisors is an integer number (20900412).

Almost surely, 2^83244143 is an apocalyptic number.

83244143 is a deficient number, since it is larger than the sum of its proper divisors (357505).

83244143 is a wasteful number, since it uses less digits than its factorization.

83244143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357504.

The product of its digits is 9216, while the sum is 29.

The square root of 83244143 is about 9123.8228281790. The cubic root of 83244143 is about 436.6343468753.

The spelling of 83244143 in words is "eighty-three million, two hundred forty-four thousand, one hundred forty-three".