241366021 has 4 divisors (see below), whose sum is σ = 259932652. Its totient is φ = 222799392.

The previous prime is 241366001. The next prime is 241366061. The reversal of 241366021 is 120663142.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 128709025 + 112656996 = 11345^2 + 10614^2 .

It is a cyclic number.

It is not a de Polignac number, because 241366021 - 2⁵ = 241365989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (241366001) 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 in 3 ways as a sum of consecutive naturals, for example, 9283296 + ... + 9283321.

It is an arithmetic number, because the mean of its divisors is an integer number (64983163).

Almost surely, 2^241366021 is an apocalyptic number.

It is an amenable number.

241366021 is a deficient number, since it is larger than the sum of its proper divisors (18566631).

241366021 is a wasteful number, since it uses less digits than its factorization.

241366021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18566630.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 241366021 is about 15535.9589662177. The cubic root of 241366021 is about 622.6233115392.

The spelling of 241366021 in words is "two hundred forty-one million, three hundred sixty-six thousand, twenty-one".