1401244241 has 4 divisors (see below), whose sum is σ = 1404245232. Its totient is φ = 1398243252.

The previous prime is 1401244217. The next prime is 1401244259. The reversal of 1401244241 is 1424421041.

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 a de Polignac number, because none of the positive numbers 2^k-1401244241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1401244211) 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 3 ways as a sum of consecutive naturals, for example, 1499795 + ... + 1500728.

It is an arithmetic number, because the mean of its divisors is an integer number (351061308).

Almost surely, 2^1401244241 is an apocalyptic number.

It is an amenable number.

1401244241 is a deficient number, since it is larger than the sum of its proper divisors (3000991).

1401244241 is an equidigital number, since it uses as much as digits as its factorization.

1401244241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000990.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 1401244241 is about 37433.1970448691. The cubic root of 1401244241 is about 1119.0202531525.

Adding to 1401244241 its reverse (1424421041), we get a palindrome (2825665282).

The spelling of 1401244241 in words is "one billion, four hundred one million, two hundred forty-four thousand, two hundred forty-one".