84542101 has 12 divisors (see below), whose sum is σ = 98496000. Its totient is φ = 72353400.

The previous prime is 84542099. The next prime is 84542111. The reversal of 84542101 is 10124548.

It is not a de Polignac number, because 84542101 - 2¹ = 84542099 is a prime.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84542111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55650 + ... + 57148.

It is an arithmetic number, because the mean of its divisors is an integer number (8208000).

Almost surely, 2^84542101 is an apocalyptic number.

It is an amenable number.

84542101 is a deficient number, since it is larger than the sum of its proper divisors (13953899).

84542101 is a wasteful number, since it uses less digits than its factorization.

84542101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 84542101 is about 9194.6778627639. The cubic root of 84542101 is about 438.8920142656.

Adding to 84542101 its reverse (10124548), we get a palindrome (94666649).

The spelling of 84542101 in words is "eighty-four million, five hundred forty-two thousand, one hundred one".