84057146 has 16 divisors (see below), whose sum is σ = 135694440. Its totient is φ = 38906880.

The previous prime is 84057143. The next prime is 84057161. The reversal of 84057146 is 64175048.

It can be written as a sum of positive squares in 4 ways, for example, as 78127921 + 5929225 = 8839^2 + 2435^2 .

It is not an unprimeable number, because it can be changed into a prime (84057143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18191 + ... + 22338.

Almost surely, 2^84057146 is an apocalyptic number.

84057146 is a deficient number, since it is larger than the sum of its proper divisors (51637294).

84057146 is a wasteful number, since it uses less digits than its factorization.

84057146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40609.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 84057146 is about 9168.2684297527. The cubic root of 84057146 is about 438.0512057618.

It can be divided in two parts, 8405 and 7146, that added together give a palindrome (15551).

The spelling of 84057146 in words is "eighty-four million, fifty-seven thousand, one hundred forty-six".