1380331471 has 4 divisors (see below), whose sum is σ = 1388043000. Its totient is φ = 1372619944.

The previous prime is 1380331427. The next prime is 1380331481. The reversal of 1380331471 is 1741330831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1380331471 - 2⁷ = 1380331343 is a prime.

It is a super-3 number, since 3×1380331471³ (a number of 28 digits) contains 333 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 (1380331481) 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, 3855496 + ... + 3855853.

It is an arithmetic number, because the mean of its divisors is an integer number (347010750).

Almost surely, 2^1380331471 is an apocalyptic number.

1380331471 is a deficient number, since it is larger than the sum of its proper divisors (7711529).

1380331471 is an equidigital number, since it uses as much as digits as its factorization.

1380331471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711528.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1380331471 is about 37152.8124238260. The cubic root of 1380331471 is about 1113.4254141652.

The spelling of 1380331471 in words is "one billion, three hundred eighty million, three hundred thirty-one thousand, four hundred seventy-one".