1331940471 has 8 divisors (see below), whose sum is σ = 1776593280. Its totient is φ = 887623992.

The previous prime is 1331940439. The next prime is 1331940481. The reversal of 1331940471 is 1740491331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1331940471 - 2⁵ = 1331940439 is a prime.

It is a super-3 number, since 3×1331940471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331940431) 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, 74691 + ... + 90788.

It is an arithmetic number, because the mean of its divisors is an integer number (222074160).

Almost surely, 2^1331940471 is an apocalyptic number.

1331940471 is a deficient number, since it is larger than the sum of its proper divisors (444652809).

1331940471 is a wasteful number, since it uses less digits than its factorization.

1331940471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168165.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 1331940471 is about 36495.7596304009. The cubic root of 1331940471 is about 1100.2590219223.

The spelling of 1331940471 in words is "one billion, three hundred thirty-one million, nine hundred forty thousand, four hundred seventy-one".