84109146 has 16 divisors (see below), whose sum is σ = 183511008. Its totient is φ = 25487600.

The previous prime is 84109127. The next prime is 84109147. The reversal of 84109146 is 64190148.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (84109147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637125 + ... + 637256.

It is an arithmetic number, because the mean of its divisors is an integer number (11469438).

Almost surely, 2^84109146 is an apocalyptic number.

84109146 is an abundant number, since it is smaller than the sum of its proper divisors (99401862).

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

84109146 is a wasteful number, since it uses less digits than its factorization.

84109146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274397.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 84109146 is about 9171.1038594054. The cubic root of 84109146 is about 438.1415172076.

It can be divided in two parts, 84109 and 146, that added together give a triangular number (84255 = T₄₁₀).

The spelling of 84109146 in words is "eighty-four million, one hundred nine thousand, one hundred forty-six".