100542205 has 8 divisors (see below), whose sum is σ = 127000800. Its totient is φ = 76200336.

The previous prime is 100542187. The next prime is 100542227. The reversal of 100542205 is 502245001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100542205 - 2¹³ = 100534013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529075 + ... + 529264.

It is an arithmetic number, because the mean of its divisors is an integer number (15875100).

Almost surely, 2^100542205 is an apocalyptic number.

It is an amenable number.

100542205 is a deficient number, since it is larger than the sum of its proper divisors (26458595).

100542205 is a wasteful number, since it uses less digits than its factorization.

100542205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058363.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 100542205 is about 10027.0736010064. The cubic root of 100542205 is about 464.9962692883.

Adding to 100542205 its reverse (502245001), we get a palindrome (602787206).

The spelling of 100542205 in words is "one hundred million, five hundred forty-two thousand, two hundred five".