202107 has 4 divisors (see below), whose sum is σ = 269480. Its totient is φ = 134736.

The previous prime is 202099. The next prime is 202109. The reversal of 202107 is 701202.

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

It is not a de Polignac number, because 202107 - 2³ = 202099 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202092 and 202101.

It is not an unprimeable number, because it can be changed into a prime (202109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33682 + ... + 33687.

It is an arithmetic number, because the mean of its divisors is an integer number (67370).

2²⁰²¹⁰⁷ is an apocalyptic number.

202107 is a deficient number, since it is larger than the sum of its proper divisors (67373).

202107 is an equidigital number, since it uses as much as digits as its factorization.

202107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67372.

The product of its (nonzero) digits is 28, while the sum is 12.

The square root of 202107 is about 449.5631212633. The cubic root of 202107 is about 58.6850013000.

Adding to 202107 its reverse (701202), we get a palindrome (903309).

The spelling of 202107 in words is "two hundred two thousand, one hundred seven", and thus it is an iban number.