1330244261 has 4 divisors (see below), whose sum is σ = 1388080992. Its totient is φ = 1272407532.

The previous prime is 1330244257. The next prime is 1330244281. The reversal of 1330244261 is 1624420331.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1624420331 = 43 ⋅37777217.

It is a cyclic number.

It is not a de Polignac number, because 1330244261 - 2² = 1330244257 is a prime.

It is a super-2 number, since 2×1330244261² = 3539099587846872242, which contains 22 as substring.

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 1330244261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330244231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28918331 + ... + 28918376.

It is an arithmetic number, because the mean of its divisors is an integer number (347020248).

Almost surely, 2^1330244261 is an apocalyptic number.

It is an amenable number.

1330244261 is a deficient number, since it is larger than the sum of its proper divisors (57836731).

1330244261 is an equidigital number, since it uses as much as digits as its factorization.

1330244261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57836730.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1330244261 is about 36472.5137740738. The cubic root of 1330244261 is about 1099.7917680218.

Adding to 1330244261 its reverse (1624420331), we get a palindrome (2954664592).

The spelling of 1330244261 in words is "one billion, three hundred thirty million, two hundred forty-four thousand, two hundred sixty-one".