84143051 has 4 divisors (see below), whose sum is σ = 84679152. Its totient is φ = 83606952.

The previous prime is 84143041. The next prime is 84143053. The reversal of 84143051 is 15034148.

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 84143051 - 2⁶ = 84142987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84143051.

It is not an unprimeable number, because it can be changed into a prime (84143053) 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, 267815 + ... + 268128.

It is an arithmetic number, because the mean of its divisors is an integer number (21169788).

Almost surely, 2^84143051 is an apocalyptic number.

84143051 is a deficient number, since it is larger than the sum of its proper divisors (536101).

84143051 is a wasteful number, since it uses less digits than its factorization.

84143051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536100.

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

The square root of 84143051 is about 9172.9521420315. The cubic root of 84143051 is about 438.2003819614.

Adding to 84143051 its reverse (15034148), we get a palindrome (99177199).

The spelling of 84143051 in words is "eighty-four million, one hundred forty-three thousand, fifty-one".