84155012 has 12 divisors (see below), whose sum is σ = 147443520. Its totient is φ = 42028296.

The previous prime is 84154991. The next prime is 84155023. The reversal of 84155012 is 21055148.

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, 8312 + ... + 15407.

It is an arithmetic number, because the mean of its divisors is an integer number (12286960).

Almost surely, 2^84155012 is an apocalyptic number.

It is an amenable number.

84155012 is a deficient number, since it is larger than the sum of its proper divisors (63288508).

84155012 is a wasteful number, since it uses less digits than its factorization.

84155012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24610 (or 24608 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 84155012 is about 9173.6040899965. The cubic root of 84155012 is about 438.2211444857.

The spelling of 84155012 in words is "eighty-four million, one hundred fifty-five thousand, twelve".