1340144241 has 8 divisors (see below), whose sum is σ = 1812026304. Its totient is φ = 880845840.

The previous prime is 1340144237. The next prime is 1340144263. The reversal of 1340144241 is 1424410431.

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

It is not a de Polignac number, because 1340144241 - 2² = 1340144237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340144341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3145666 + ... + 3146091.

It is an arithmetic number, because the mean of its divisors is an integer number (226503288).

Almost surely, 2^1340144241 is an apocalyptic number.

It is an amenable number.

1340144241 is a deficient number, since it is larger than the sum of its proper divisors (471882063).

1340144241 is an equidigital number, since it uses as much as digits as its factorization.

1340144241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6291831.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1340144241 is about 36607.9805643524. The cubic root of 1340144241 is about 1102.5133277218.

Adding to 1340144241 its reverse (1424410431), we get a palindrome (2764554672).

The spelling of 1340144241 in words is "one billion, three hundred forty million, one hundred forty-four thousand, two hundred forty-one".