241557421 has 4 divisors (see below), whose sum is σ = 276065632. Its totient is φ = 207049212.

The previous prime is 241557419. The next prime is 241557467. The reversal of 241557421 is 124755142.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 241557421 - 2¹ = 241557419 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 (241557401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17254095 + ... + 17254108.

It is an arithmetic number, because the mean of its divisors is an integer number (69016408).

Almost surely, 2^241557421 is an apocalyptic number.

It is an amenable number.

241557421 is a deficient number, since it is larger than the sum of its proper divisors (34508211).

241557421 is an equidigital number, since it uses as much as digits as its factorization.

241557421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34508210.

The product of its digits is 11200, while the sum is 31.

The square root of 241557421 is about 15542.1176485059. The cubic root of 241557421 is about 622.7878453526.

The spelling of 241557421 in words is "two hundred forty-one million, five hundred fifty-seven thousand, four hundred twenty-one".