84143011 has 2 divisors, whose sum is σ = 84143012. Its totient is φ = 84143010.

The previous prime is 84142987. The next prime is 84143041. The reversal of 84143011 is 11034148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 84143011 - 2¹¹ = 84140963 is a prime.

It is a super-2 number, since 2×84143011² = 14160092600292242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84143041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42071505 + 42071506.

It is an arithmetic number, because the mean of its divisors is an integer number (42071506).

Almost surely, 2^84143011 is an apocalyptic number.

84143011 is a deficient number, since it is larger than the sum of its proper divisors (1).

84143011 is an equidigital number, since it uses as much as digits as its factorization.

84143011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 84143011 is about 9172.9499617081. The cubic root of 84143011 is about 438.2003125240.

Adding to 84143011 its reverse (11034148), we get a palindrome (95177159).

The spelling of 84143011 in words is "eighty-four million, one hundred forty-three thousand, eleven".