241261021 has 2 divisors, whose sum is σ = 241261022. Its totient is φ = 241261020.

The previous prime is 241260959. The next prime is 241261057. The reversal of 241261021 is 120162142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 181198521 + 60062500 = 13461^2 + 7750^2 .

It is a cyclic number.

It is not a de Polignac number, because 241261021 - 2⁷ = 241260893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 241261021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241261061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120630510 + 120630511.

It is an arithmetic number, because the mean of its divisors is an integer number (120630511).

Almost surely, 2^241261021 is an apocalyptic number.

It is an amenable number.

241261021 is a deficient number, since it is larger than the sum of its proper divisors (1).

241261021 is an equidigital number, since it uses as much as digits as its factorization.

241261021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 241261021 is about 15532.5793415002. The cubic root of 241261021 is about 622.5330130930.

The spelling of 241261021 in words is "two hundred forty-one million, two hundred sixty-one thousand, twenty-one".