241561381 has 24 divisors (see below), whose sum is σ = 267960960. Its totient is φ = 216952320.

The previous prime is 241561379. The next prime is 241561417. The reversal of 241561381 is 183165142.

It is not a de Polignac number, because 241561381 - 2¹ = 241561379 is a prime.

It is a super-2 number, since 2×241561381² = 116703801581254322, which 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 (241561301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2257530 + ... + 2257636.

It is an arithmetic number, because the mean of its divisors is an integer number (11165040).

Almost surely, 2^241561381 is an apocalyptic number.

It is an amenable number.

241561381 is a deficient number, since it is larger than the sum of its proper divisors (26399579).

241561381 is a wasteful number, since it uses less digits than its factorization.

241561381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 244 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 241561381 is about 15542.2450437509. The cubic root of 241561381 is about 622.7912485826.

The spelling of 241561381 in words is "two hundred forty-one million, five hundred sixty-one thousand, three hundred eighty-one".