84051143 has 4 divisors (see below), whose sum is σ = 91692168. Its totient is φ = 76410120.

The previous prime is 84051139. The next prime is 84051157. The reversal of 84051143 is 34115048.

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 84051143 - 2² = 84051139 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 (84051103) 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, 3820496 + ... + 3820517.

It is an arithmetic number, because the mean of its divisors is an integer number (22923042).

Almost surely, 2^84051143 is an apocalyptic number.

84051143 is a deficient number, since it is larger than the sum of its proper divisors (7641025).

84051143 is a wasteful number, since it uses less digits than its factorization.

84051143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7641024.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 84051143 is about 9167.9410447494. The cubic root of 84051143 is about 438.0407776023.

The spelling of 84051143 in words is "eighty-four million, fifty-one thousand, one hundred forty-three".