1330885981 has 8 divisors (see below), whose sum is σ = 1365047424. Its totient is φ = 1296968160.

The previous prime is 1330885979. The next prime is 1330886047. The reversal of 1330885981 is 1895880331.

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 1330885981 - 2¹ = 1330885979 is a prime.

It is a super-2 number, since 2×1330885981² = 3542514988844664722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330886981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49815 + ... + 71716.

It is an arithmetic number, because the mean of its divisors is an integer number (170630928).

Almost surely, 2^1330885981 is an apocalyptic number.

It is an amenable number.

1330885981 is a deficient number, since it is larger than the sum of its proper divisors (34161443).

1330885981 is a wasteful number, since it uses less digits than its factorization.

1330885981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121811.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 1330885981 is about 36481.3100230789. The cubic root of 1330885981 is about 1099.9685889102.

The spelling of 1330885981 in words is "one billion, three hundred thirty million, eight hundred eighty-five thousand, nine hundred eighty-one".