100202 has 4 divisors (see below), whose sum is σ = 150306. Its totient is φ = 50100.

The previous prime is 100193. The next prime is 100207. The reversal of 100202 is 202001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 96721 + 3481 = 311^2 + 59^2 .

100202 is a modest number, since divided by 202 gives 10 as remainder.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (100207) by changing a digit.

100202 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25049 + ... + 25052.

2¹⁰⁰²⁰² is an apocalyptic number.

100202 is a deficient number, since it is larger than the sum of its proper divisors (50104).

100202 is an equidigital number, since it uses as much as digits as its factorization.

100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50103.

The product of its (nonzero) digits is 4, while the sum is 5.

The square root of 100202 is about 316.5469949312. The cubic root of 100202 is about 46.4471206806.

Adding to 100202 its reverse (202001), we get a palindrome (302203).

Multiplying 100202 by its reverse (202001), we get a palindrome (20240904202).

The spelling of 100202 in words is "one hundred thousand, two hundred two", and thus it is an iban number.