1331382071 has 8 divisors (see below), whose sum is σ = 1389641184. Its totient is φ = 1273154080.

The previous prime is 1331382067. The next prime is 1331382109. The reversal of 1331382071 is 1702831331.

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 1331382071 - 2² = 1331382067 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331382671) 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, 137861 + ... + 147201.

It is an arithmetic number, because the mean of its divisors is an integer number (173705148).

Almost surely, 2^1331382071 is an apocalyptic number.

1331382071 is a deficient number, since it is larger than the sum of its proper divisors (58259113).

1331382071 is an equidigital number, since it uses as much as digits as its factorization.

1331382071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15561.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1331382071 is about 36488.1086245917. The cubic root of 1331382071 is about 1100.1052436494.

The spelling of 1331382071 in words is "one billion, three hundred thirty-one million, three hundred eighty-two thousand, seventy-one".