1331982555 has 64 divisors (see below), whose sum is σ = 2478781440. Its totient is φ = 605822976.

The previous prime is 1331982541. The next prime is 1331982569. The reversal of 1331982555 is 5552891331.

It is an interprime number because it is at equal distance from previous prime (1331982541) and next prime (1331982569).

It is not a de Polignac number, because 1331982555 - 2¹³ = 1331974363 is a prime.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 105459 + ... + 117411.

It is an arithmetic number, because the mean of its divisors is an integer number (38730960).

Almost surely, 2^1331982555 is an apocalyptic number.

1331982555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1331982555 is a deficient number, since it is larger than the sum of its proper divisors (1146798885).

1331982555 is a wasteful number, since it uses less digits than its factorization.

1331982555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12020.

The product of its digits is 162000, while the sum is 42.

The square root of 1331982555 is about 36496.3361859790. The cubic root of 1331982555 is about 1100.2706097307.

The spelling of 1331982555 in words is "one billion, three hundred thirty-one million, nine hundred eighty-two thousand, five hundred fifty-five".