84542124 has 12 divisors (see below), whose sum is σ = 197264984. Its totient is φ = 28180704.

The previous prime is 84542119. The next prime is 84542147. The reversal of 84542124 is 42124548.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 84542091 and 84542100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3522577 + ... + 3522600.

Almost surely, 2^84542124 is an apocalyptic number.

It is an amenable number.

84542124 is an abundant number, since it is smaller than the sum of its proper divisors (112722860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84542124 is a wasteful number, since it uses less digits than its factorization.

84542124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7045184 (or 7045182 counting only the distinct ones).

The product of its digits is 10240, while the sum is 30.

The square root of 84542124 is about 9194.6791134873. The cubic root of 84542124 is about 438.8920540663.

It can be divided in two parts, 84542 and 124, that added together give a triangular number (84666 = T₄₁₁).

The spelling of 84542124 in words is "eighty-four million, five hundred forty-two thousand, one hundred twenty-four".