202124141 has 4 divisors (see below), whose sum is σ = 202153692. Its totient is φ = 202094592.

The previous prime is 202124099. The next prime is 202124191. The reversal of 202124141 is 141421202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 181010116 + 21114025 = 13454^2 + 4595^2 .

It is a cyclic number.

It is not a de Polignac number, because 202124141 - 2⁶ = 202124077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202124191) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1355 + ... + 20151.

It is an arithmetic number, because the mean of its divisors is an integer number (50538423).

Almost surely, 2^202124141 is an apocalyptic number.

It is an amenable number.

202124141 is a deficient number, since it is larger than the sum of its proper divisors (29551).

202124141 is a wasteful number, since it uses less digits than its factorization.

202124141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29550.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 202124141 is about 14217.0369979120. The cubic root of 202124141 is about 586.8666030760.

Adding to 202124141 its reverse (141421202), we get a palindrome (343545343).

It can be divided in two parts, 2021 and 24141, that added together give a palindrome (26162).

The spelling of 202124141 in words is "two hundred two million, one hundred twenty-four thousand, one hundred forty-one".