100020485 has 8 divisors (see below), whose sum is σ = 120087960. Its totient is φ = 79974144.

The previous prime is 100020467. The next prime is 100020493. The reversal of 100020485 is 584020001.

It can be written as a sum of positive squares in 4 ways, for example, as 1256641 + 98763844 = 1121^2 + 9938^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 100020485 - 2¹⁶ = 99954949 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 8321 + ... + 16409.

It is an arithmetic number, because the mean of its divisors is an integer number (15010995).

Almost surely, 2^100020485 is an apocalyptic number.

It is an amenable number.

100020485 is a deficient number, since it is larger than the sum of its proper divisors (20067475).

100020485 is an equidigital number, since it uses as much as digits as its factorization.

100020485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10567.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 100020485 is about 10001.0241975510. The cubic root of 100020485 is about 464.1905755131.

Adding to 100020485 its reverse (584020001), we get a palindrome (684040486).

The spelling of 100020485 in words is "one hundred million, twenty thousand, four hundred eighty-five".