241220345 has 4 divisors (see below), whose sum is σ = 289464420. Its totient is φ = 192976272.

The previous prime is 241220281. The next prime is 241220351. The reversal of 241220345 is 543022142.

It is a happy number.

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 153685609 + 87534736 = 12397^2 + 9356^2 .

It is a cyclic number.

It is not a de Polignac number, because 241220345 - 2⁶ = 241220281 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 241220345.

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, 24122030 + ... + 24122039.

It is an arithmetic number, because the mean of its divisors is an integer number (72366105).

Almost surely, 2^241220345 is an apocalyptic number.

It is an amenable number.

241220345 is a deficient number, since it is larger than the sum of its proper divisors (48244075).

241220345 is an equidigital number, since it uses as much as digits as its factorization.

241220345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48244074.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 241220345 is about 15531.2699094440. The cubic root of 241220345 is about 622.4980252944.

Adding to 241220345 its reverse (543022142), we get a palindrome (784242487).

The spelling of 241220345 in words is "two hundred forty-one million, two hundred twenty thousand, three hundred forty-five".