241540154544421 has 2 divisors, whose sum is σ = 241540154544422. Its totient is φ = 241540154544420.

The previous prime is 241540154544391. The next prime is 241540154544467. The reversal of 241540154544421 is 124445451045142.

It is an a-pointer prime, because the next prime (241540154544467) can be obtained adding 241540154544421 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229282768431396 + 12257386113025 = 15142086^2 + 3501055^2 .

It is a cyclic number.

It is not a de Polignac number, because 241540154544421 - 2³⁵ = 241505794806053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241540154547421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120770077272210 + 120770077272211.

It is an arithmetic number, because the mean of its divisors is an integer number (120770077272211).

Almost surely, 2^{241540154544421} is an apocalyptic number.

It is an amenable number.

241540154544421 is a deficient number, since it is larger than the sum of its proper divisors (1).

241540154544421 is an equidigital number, since it uses as much as digits as its factorization.

241540154544421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048000, while the sum is 46.

The spelling of 241540154544421 in words is "two hundred forty-one trillion, five hundred forty billion, one hundred fifty-four million, five hundred forty-four thousand, four hundred twenty-one".