1330881249 has 4 divisors (see below), whose sum is σ = 1774508336. Its totient is φ = 887254164.

The previous prime is 1330881241. The next prime is 1330881257. The reversal of 1330881249 is 9421880331.

1330881249 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (1330881241) and next prime (1330881257).

It is not a de Polignac number, because 1330881249 - 2³ = 1330881241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330881241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221813539 + ... + 221813544.

It is an arithmetic number, because the mean of its divisors is an integer number (443627084).

Almost surely, 2^1330881249 is an apocalyptic number.

It is an amenable number.

1330881249 is a deficient number, since it is larger than the sum of its proper divisors (443627087).

1330881249 is an equidigital number, since it uses as much as digits as its factorization.

1330881249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443627086.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1330881249 is about 36481.2451678941. The cubic root of 1330881249 is about 1099.9672852529.

The spelling of 1330881249 in words is "one billion, three hundred thirty million, eight hundred eighty-one thousand, two hundred forty-nine".