241221352153 has 4 divisors (see below), whose sum is σ = 241493304960. Its totient is φ = 240949399348.

The previous prime is 241221352147. The next prime is 241221352237. The reversal of 241221352153 is 351253122142.

It is a happy number.

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 241221352153 - 2²¹ = 241219255001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (241225352153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135975073 + ... + 135976846.

It is an arithmetic number, because the mean of its divisors is an integer number (60373326240).

Almost surely, 2^241221352153 is an apocalyptic number.

It is an amenable number.

241221352153 is a deficient number, since it is larger than the sum of its proper divisors (271952807).

241221352153 is an equidigital number, since it uses as much as digits as its factorization.

241221352153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271952806.

The product of its digits is 14400, while the sum is 31.

Adding to 241221352153 its reverse (351253122142), we get a palindrome (592474474295).

The spelling of 241221352153 in words is "two hundred forty-one billion, two hundred twenty-one million, three hundred fifty-two thousand, one hundred fifty-three".