241188781 has 2 divisors, whose sum is σ = 241188782. Its totient is φ = 241188780.

The previous prime is 241188767. The next prime is 241188797. The reversal of 241188781 is 187881142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200675556 + 40513225 = 14166^2 + 6365^2 .

It is a cyclic number.

It is not a de Polignac number, because 241188781 - 2⁷ = 241188653 is a prime.

It is a super-2 number, since 2×241188781² = 116344056160531922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241188481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120594390 + 120594391.

It is an arithmetic number, because the mean of its divisors is an integer number (120594391).

Almost surely, 2^241188781 is an apocalyptic number.

It is an amenable number.

241188781 is a deficient number, since it is larger than the sum of its proper divisors (1).

241188781 is an equidigital number, since it uses as much as digits as its factorization.

241188781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28672, while the sum is 40.

The square root of 241188781 is about 15530.2537326342. The cubic root of 241188781 is about 622.4708725478.

The spelling of 241188781 in words is "two hundred forty-one million, one hundred eighty-eight thousand, seven hundred eighty-one".