243020141 has 12 divisors (see below), whose sum is σ = 300746592. Its totient is φ = 192278736.

The previous prime is 243020137. The next prime is 243020147. The reversal of 243020141 is 141020342.

It is not a de Polignac number, because 243020141 - 2² = 243020137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243020147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101531 + ... + 103896.

It is an arithmetic number, because the mean of its divisors is an integer number (25062216).

Almost surely, 2^243020141 is an apocalyptic number.

It is an amenable number.

243020141 is a deficient number, since it is larger than the sum of its proper divisors (57726451).

243020141 is a wasteful number, since it uses less digits than its factorization.

243020141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205460 (or 205447 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 243020141 is about 15589.1032776103. The cubic root of 243020141 is about 624.0423871669.

Adding to 243020141 its reverse (141020342), we get a palindrome (384040483).

The spelling of 243020141 in words is "two hundred forty-three million, twenty thousand, one hundred forty-one".