1241043985 has 8 divisors (see below), whose sum is σ = 1494337320. Its totient is φ = 989445504.

The previous prime is 1241043961. The next prime is 1241043997. The reversal of 1241043985 is 5893401421.

It can be written as a sum of positive squares in 4 ways, for example, as 833650129 + 407393856 = 28873^2 + 20184^2 .

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 1241043985 - 2¹¹ = 1241041937 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422100 + ... + 425029.

It is an arithmetic number, because the mean of its divisors is an integer number (186792165).

Almost surely, 2^1241043985 is an apocalyptic number.

It is an amenable number.

1241043985 is a deficient number, since it is larger than the sum of its proper divisors (253293335).

1241043985 is an equidigital number, since it uses as much as digits as its factorization.

1241043985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847427.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 1241043985 is about 35228.4541954370. The cubic root of 1241043985 is about 1074.6384895829.

The spelling of 1241043985 in words is "one billion, two hundred forty-one million, forty-three thousand, nine hundred eighty-five".