202440142141 has 4 divisors (see below), whose sum is σ = 207911497372. Its totient is φ = 196968786912.

The previous prime is 202440142139. The next prime is 202440142189. The reversal of 202440142141 is 141241044202.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 165555403225 + 36884738916 = 406885^2 + 192054^2 .

It is a cyclic number.

It is not a de Polignac number, because 202440142141 - 2¹ = 202440142139 is a prime.

It is a super-2 number, since 2×202440142141² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202440142111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2735677560 + ... + 2735677633.

It is an arithmetic number, because the mean of its divisors is an integer number (51977874343).

Almost surely, 2^202440142141 is an apocalyptic number.

It is an amenable number.

202440142141 is a deficient number, since it is larger than the sum of its proper divisors (5471355231).

202440142141 is an equidigital number, since it uses as much as digits as its factorization.

202440142141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5471355230.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 202440142141 its reverse (141241044202), we get a palindrome (343681186343).

The spelling of 202440142141 in words is "two hundred two billion, four hundred forty million, one hundred forty-two thousand, one hundred forty-one".