1081973313 has 48 divisors (see below), whose sum is σ = 1706651856. Its totient is φ = 657838080.

The previous prime is 1081973311. The next prime is 1081973327. The reversal of 1081973313 is 3133791801.

It can be written as a sum of positive squares in 8 ways, for example, as 98962704 + 983010609 = 9948^2 + 31353^2 .

It is not a de Polignac number, because 1081973313 - 2¹ = 1081973311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1081973311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1084731 + ... + 1085727.

It is an arithmetic number, because the mean of its divisors is an integer number (35555247).

Almost surely, 2^1081973313 is an apocalyptic number.

It is an amenable number.

1081973313 is a deficient number, since it is larger than the sum of its proper divisors (624678543).

1081973313 is a wasteful number, since it uses less digits than its factorization.

1081973313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1231 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1081973313 is about 32893.3627499531. The cubic root of 1081973313 is about 1026.6100614745.

The spelling of 1081973313 in words is "one billion, eighty-one million, nine hundred seventy-three thousand, three hundred thirteen".