241221545 has 4 divisors (see below), whose sum is σ = 289465860. Its totient is φ = 192977232.

The previous prime is 241221527. The next prime is 241221557. The reversal of 241221545 is 545122142.

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 169937296 + 71284249 = 13036^2 + 8443^2 .

It is a cyclic number.

It is not a de Polignac number, because 241221545 - 2⁸ = 241221289 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24122150 + ... + 24122159.

It is an arithmetic number, because the mean of its divisors is an integer number (72366465).

Almost surely, 2^241221545 is an apocalyptic number.

It is an amenable number.

241221545 is a deficient number, since it is larger than the sum of its proper divisors (48244315).

241221545 is an equidigital number, since it uses as much as digits as its factorization.

241221545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48244314.

The product of its digits is 3200, while the sum is 26.

The square root of 241221545 is about 15531.3085411372. The cubic root of 241221545 is about 622.4990575407.

Adding to 241221545 its reverse (545122142), we get a palindrome (786343687).

The spelling of 241221545 in words is "two hundred forty-one million, two hundred twenty-one thousand, five hundred forty-five".