202126 has 4 divisors (see below), whose sum is σ = 303192. Its totient is φ = 101062.

The previous prime is 202121. The next prime is 202127. The reversal of 202126 is 621202.

It is a happy number.

202126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202121) by changing a digit.

202126 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, 50530 + ... + 50533.

It is an arithmetic number, because the mean of its divisors is an integer number (75798).

2²⁰²¹²⁶ is an apocalyptic number.

202126 is a deficient number, since it is larger than the sum of its proper divisors (101066).

202126 is a wasteful number, since it uses less digits than its factorization.

202126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101065.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 202126 is about 449.5842523933. The cubic root of 202126 is about 58.6868402270.

Adding to 202126 its reverse (621202), we get a palindrome (823328).

It can be divided in two parts, 202 and 126, that multiplied together give a palindrome (25452).

The spelling of 202126 in words is "two hundred two thousand, one hundred twenty-six".