84180054 has 32 divisors (see below), whose sum is σ = 192830976. Its totient is φ = 23999040.

The previous prime is 84180043. The next prime is 84180067. The reversal of 84180054 is 45008148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19959 + ... + 23805.

It is an arithmetic number, because the mean of its divisors is an integer number (6025968).

Almost surely, 2^84180054 is an apocalyptic number.

84180054 is an abundant number, since it is smaller than the sum of its proper divisors (108650922).

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

84180054 is a wasteful number, since it uses less digits than its factorization.

84180054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380.

The product of its (nonzero) digits is 5120, while the sum is 30.

The square root of 84180054 is about 9174.9688827810. The cubic root of 84180054 is about 438.2646073183.

The spelling of 84180054 in words is "eighty-four million, one hundred eighty thousand, fifty-four".