241601557 has 2 divisors, whose sum is σ = 241601558. Its totient is φ = 241601556.

The previous prime is 241601551. The next prime is 241601579. The reversal of 241601557 is 755106142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151142436 + 90459121 = 12294^2 + 9511^2 .

It is a cyclic number.

It is not a de Polignac number, because 241601557 - 2⁷ = 241601429 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241601551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120800778 + 120800779.

It is an arithmetic number, because the mean of its divisors is an integer number (120800779).

Almost surely, 2^241601557 is an apocalyptic number.

It is an amenable number.

241601557 is a deficient number, since it is larger than the sum of its proper divisors (1).

241601557 is an equidigital number, since it uses as much as digits as its factorization.

241601557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 241601557 is about 15543.5374673850. The cubic root of 241601557 is about 622.8257737953.

Adding to 241601557 its reverse (755106142), we get a palindrome (996707699).

The spelling of 241601557 in words is "two hundred forty-one million, six hundred one thousand, five hundred fifty-seven".