241533914521 has 3 divisors (see below), whose sum is σ = 241534405983. Its totient is φ = 241533423060.

The previous prime is 241533914519. The next prime is 241533914537. The reversal of 241533914521 is 125419335142.

It is a happy number.

The square root of 241533914521 is 491461.

It is a perfect power (a square), and thus also a powerful number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 125419335142 = 2 ⋅62709667571.

It can be written as a sum of positive squares in only one way, i.e., 825930121 + 240707984400 = 28739^2 + 490620^2 .

It is not a de Polignac number, because 241533914521 - 2¹ = 241533914519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (241533954521) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 245731 + ... + 737191.

It is an arithmetic number, because the mean of its divisors is an integer number (80511468661).

Almost surely, 2^241533914521 is an apocalyptic number.

241533914521 is the 491461-st square number.

241533914521 is the 245731-st centered octagonal number.

It is an amenable number.

241533914521 is a deficient number, since it is larger than the sum of its proper divisors (491462).

241533914521 is an frugal number, since it uses more digits than its factorization.

241533914521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982922 (or 491461 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The spelling of 241533914521 in words is "two hundred forty-one billion, five hundred thirty-three million, nine hundred fourteen thousand, five hundred twenty-one".