1332431985 has 16 divisors (see below), whose sum is σ = 2132633664. Its totient is φ = 710382912.

The previous prime is 1332431983. The next prime is 1332432011. The reversal of 1332431985 is 5891342331.

It is a happy number.

It is not a de Polignac number, because 1332431985 - 2¹ = 1332431983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1332431983) 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 15 ways as a sum of consecutive naturals, for example, 34179 + ... + 61911.

It is an arithmetic number, because the mean of its divisors is an integer number (133289604).

Almost surely, 2^1332431985 is an apocalyptic number.

1332431985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1332431985 is a deficient number, since it is larger than the sum of its proper divisors (800201679).

1332431985 is a wasteful number, since it uses less digits than its factorization.

1332431985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30944.

The product of its digits is 77760, while the sum is 39.

The square root of 1332431985 is about 36502.4928600774. The cubic root of 1332431985 is about 1100.3943448382.

The spelling of 1332431985 in words is "one billion, three hundred thirty-two million, four hundred thirty-one thousand, nine hundred eighty-five".