1241643533 has 8 divisors (see below), whose sum is σ = 1368251808. Its totient is φ = 1119477744.

The previous prime is 1241643511. The next prime is 1241643547. The reversal of 1241643533 is 3353461421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1241643533 - 2¹⁰ = 1241642509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1241643533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241643833) 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 7 ways as a sum of consecutive naturals, for example, 1110035 + ... + 1111152.

It is an arithmetic number, because the mean of its divisors is an integer number (171031476).

Almost surely, 2^1241643533 is an apocalyptic number.

1241643533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1241643533 is a deficient number, since it is larger than the sum of its proper divisors (126608275).

1241643533 is a wasteful number, since it uses less digits than its factorization.

1241643533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221243.

The product of its digits is 25920, while the sum is 32.

The square root of 1241643533 is about 35236.9625961149. The cubic root of 1241643533 is about 1074.8115142405.

The spelling of 1241643533 in words is "one billion, two hundred forty-one million, six hundred forty-three thousand, five hundred thirty-three".